Magpul Pro 700L Remington 700 Long Action Chassis

Picture of a Magpul Pro 700L Remington 700 Long Action Chassis

Magpul Pro 700L Remington 700 Long Action Chassis

Magpul has followed up their Pro 700 Chassis Remington 700 Short Action Chassis with the new Pro 700L series. The Pro 700L is the long action version of the chassis for popular calibers such as .300 Winchester Magnum, 30-06 Springfield, 7mm Remington Magnum etc. The chassis are feature rich and available in 3 colors. They are priced between $900-$1000 which is higher than I would expect given how competitive the field is. I plan on getting one and seeing how it compares to my MDT’s. Visit Magpul

  • Magpul Pro 700L Remington 700 Long Action Chassis Fixed Stock Part Number MAG1003
  • Magpul Pro 700L Remington 700 Long Action Chassis Folding Stock Part Number MAG1002

Magpul Pro 700L Chassis

Four years in the making, the Magpul Pro 700 and Pro 700L redefines precision through versatility, flexibility, and accuracy. Designed for your for short action Remington® 700 actions and other Remington 700 footprint actions, this uncompromising, full-featured rifle chassis merges performance and value with hallmark Magpul innovation and design. Available in folding and fixed stock options.

FOLDING OR FIXED STOCK

Our folding stock comes with a  push-button activated steel hinge with Melonite® finish that is reversible for left or right folding capability with the use of a 5/32” hex wrench. We offer a fixed stock adapter if you want to change with your situation.

AMBIDEXTROUS EVERYTHING

Our ambidextrous bedding block can easily support changing back and forth from left and right-hand actions by swapping the QD sling swivel plate, cheek riser, and bolt retainer insert using a 1/8” hex wrench.

HEIGHT, LENGTH OF PULL, AND CANT ADJUSTABLE BUTT-PAD

The butt-pad height can be adjusted up 1.33” and down .90” and is adjustable left or right for a total of 5 degrees. Overall LOP adjustment range is from 13.25” to  15.125”.

HORIZONTALLY AND VERTICALLY ADJUSTABLE CHEEK RISER

The cheek riser features a 3-position fore and aft adjustment of +.375”, 0” and -.375” which can also be changed for left or right side usage with a common hex wrench. Cheek riser adjusts in height by 1”.

ADJUSTABLE GRIP OPTIONS

The large trigger guard allows for use with gloves and accepts most factory and aftermarket curved or flat triggers. The polymer grip has a 5 degree forward edge sweep and enlarged palm swell with a 7 degree aft edge sweep for enhanced user comfort, combined with a .75” fore/aft adjustment range. An additional grip option is included in the box with a more aggressive sweep and enlarged palm swell for the shooter who is more inclined to a less vertical grip interface (8 degree forward / 20 degree aft edge sweep).

NIGHT VISION MOUNT

The  Magpul Pro NVM (MAG1001, sold separately) is  versatile MIL-STD 1913 thermal and image intensified clip-on optic mounting solution designed  and  optimized  for  the  Magpul  Pro  700 and Pro 700L  rifle  chassis.  Precision-machined  from  a  solid  piece  of  mil-spec  6061  T-6  hard  anodized  aluminum,  the  Pro  NVM  provides  a  rigid,  seamlessly  integrated,  repeatable,  and  easily-installed  mounting  interface  for  a  wide  array  of  popular  clip-on  night  vision  devices.

INTEGRATED AICS MAGWELL

Our integrated AICS pattern magazine well is constructed of reinforced polymer and is optimized for PMAG 5 & PMAG 10 7.62 AC™ magazines as well as most other AICS pattern short action magazines. The low-profile, anti-snag ambidextrous magazine release is made of Melonite-treated steel for wear and corrosion resistance.

M-LOK EVERYWHERE

Features M-LOK® slots for accessory mounting on the forend (6 slots on the left and right; 7 slots on the bottom) and on the stock (2 on the bottom).

MDT Releases Generation 2 LSS Rifle Chassis

MDT Generation 2 LSS Rifle Chassis
Picture of a MDT Generation 2 LSS Rifle Chassis

MDT Releases Generation 2 LSS Rifle Chassis

MDT has just re-launched the Light Sniper System (LSS) chassis with second generation design and feature updates.  The LSS GEN2 is designed for use with compact, short barrelled rifles to provide light-weight, accuracy improvement and consistency.

New Features Include:

  • weighs only 1.4 pounds
  • ambidextrous magazine release
  • M-LOK pattern attachment slots on the sides and bottom of the forend
  • barricade-stop grooves integrated ahead of mag-well and a side-relieved mag well.

The chassis accepts AICS pattern magazines as well as AR-style pistol grips and buttstocks to provide maximum customization and modularity to the end user. Retail: $399.99 – $449.99

MDT Generation 2 LSS Rifle Chassis

MDT Generation 2 LSS Chassis System

Replace your stock on your Tikka T3, Remington 700 or one of many other bolt action rifles with our tactical chassis!

Our LSS Chassis was designed for use with short barrelled bolt action rifles. It converts your rifle to an external box magazine fed rifle, while improving accuracy, and giving the rifle superior ergonomics by allowing use of AR-15 butt-stocks and grips.

LSS Gen2 Chassis System

Our MDT LSS Chassis System is onto the next generation.

The LSS Gen2 is an update of our popular LSS chassis. The LSS Gen2 chassis system now sports a bold and modern new look inspired by the contours of our more recent chassis lines like the ESS, ACC & LSS-XL Gen2, and is lighter than ever (1.3 to 1.7lb depending on the model).

The LSS Gen2 incorporates the following new features, in addition to everything the original LSS had to offer:

  • Ambidextrous magazine release
  • M-Lok pattern attachment slots on sides and bottom of the forend
  • Barricade-stop grooves ahead of mag-well
  • Side-relieved mag well

LSS Chassis Details

Our LSS chassis system was designed to be as compact as possible. The V-shaped bedding and free floated forend improve accuracy and ergonomics. The forend allows for barrel contours up to 1″ in diameter. The graphic on the right shows the two flat spots (V-block) where the action sits. The area below the action remains rounded to ultimate strength.

The chassis system is manufactured out of billet 6061-T6 aluminum and has been finished with Cerakote™ in Black or Flat Dark Earth (FDE). To keep this chassis system compact, it was designed for carbine AR-15 buttstocks. However, fixed buttstocks can be mounted with the use of a fixed stock adapter. Alternatively, our LSS-XL Gen2 chassis has a longer forend and was designed to accept fixed buttstocks without the use of the adapter.

LSS Chassis Compatibility

The MDT LSS chassis system is currently manufactured for the following bolt action rifle platforms:

  • Remington 700 Short Action
  • Remington 700 Long Action
  • Remington Model 7
  • Remington Model 783
  • Remington R700 Clones such as Bergara B14
  • Savage Short Action, Models 10, 11, 12 and 16
  • Savage Long Action, Models 110, 111, 112 and 116
  • Savage Axis – Short Calibers
  • Tikka T3 / T3x – Short Calibers
  • Tikka T3 / T3x – Long Calibers using MDT 3.56 Magazine
  • Mossberg MVP 5.56 (.223) using AR-15 Magazines
  • Mossberg MVP 7.62 (.308) using AR-10 Magazines
  • Mossberg Patriot Short Action
  • Howa 1500 / Weatherby Vanguard – Short Calibers (Only compatible with MDT Polymer magazines)
  • Howa 1500 / Weatherby Vanguard – Long Calibers
  • Howa 1500 Mini Action -Short Calibers. (Only compatible with the OEM Magazines)
  • Ruger M77 (Scout) Short Action
  • Ruger American – Short Action

LSS Chassis Mounting and Compatible Accessories

The LSS chassis is designed to accept any AR-15 buttstock and pistol grip (purchased separately), offering the option to customize from the wide variety of Accessories available on the market.

The LSS chassis uses AICS style external box style magazines in .223 and .308 caliber for Short Action and .300WM or .338LM AICS style magazines for Long Action rifles, and supports the installation of bolt-on MIL-STN-1913 accessory mounting rails. Mounting holes are spaced for Magpul style L5 (11 slots) and L3 (7 slots) rails (1.600” / 3.200”) to be used on the bottom of the forend up to 6.5″ in length.

Note: Long action magazines come in 4 different lengths: 3.560″, 3.715″, 3.775″ and 3.850″. The LSS chassis for long action uses 3.715 length magazines with the exception of the Tikka T3 which needs the 3.560″ length magazines.

The max thickness of recoil lug recommend is .350″ (8.9mm)

LSS Chassis Specifications

For rifles with longer barrels to be used for long range (past 900 meters) we recommend our TAC21, ESS or our HS3 Chassis systems.

What You Get, and What You Need

The LSS chassis system comes as a 1-piece chassis, with all required mounting hardware included. This includes new action screws and a screw for the pistol grip.

To complete this chassis on your rifle, the additional items you need to purchase are:

  • Any AR-15 buttstock. For fixed buttstocks, you will need the fixed stock adapter, or consider using our LSS-XL Gen2 chassis.
  • A buffer tube for your buttstock. (Both mil-spec and commercial work on our chassis)
  • An AR-15 Pistol Grip. Ideally without a beavertail, or use a soft (bendable) beavertail.
  • At least one magazine

If you prefer a longer forend, please also see our LSS-XL chassis System or our HS3 Chassis System.

Important Notes

Howa 1500 / Weatherby Vanguard Short Actions This is the only action that we manufacture a chassis for that has a flat bottom action. For this reason, only our Polymer magazines will work. The fitting may need to be modified slightly for proper feeding. For .223 models the bolt stop may be too long. This can easily be modified. This also means that the action does not sit in a V-Block.

Savage models 10/110 11/111 12/112 16/116 For rifles with the bolt release at the bottom, the bolt release can be engaged through the side of the chassis, using a pin or tool. (Not included)

Savage Long Action in 338 Lapua Magnum Savage Long Action Chassis systems all use 3.715″ AICS magazine wells. The BA 110 in 338 Lapua Magnum uses 3.850″ magazines and have recently switched to a thicker recoil lug which will not fit our chassis. We have released a version of the ESS which is specifically designed around the current BA 110 in 338 Lapua Magnum.

Tikka T3 / T3x – Long Calibers Only our Metal 3.56 magazine will fit with the chassis for this action and needs to be purchased separately.

Savage Axis The original recoil lug that comes with the rifle is required for installation into the chassis. On the Long Action, you will need to use 30.06 3.56 Magazine

Ruger American The action screw is located directly above the magazine lever. This means that the magazine lever needs to be installed AFTER installing the action into the chassis. Detailed instructions are provided, and an installation video can be found here.

Ruger American in 223/5.56mm requires the use of this magazine. Does not work with 300 Blackout

It will fit Predator and Ranch versions. Please read notes on magazines for 223/556 rifles.

Ruger Scout Drop- in for Ruger Gunsite Scout rifles only. Will not fit older Tang safety Ruger M77. Mark II and Hawkeye short action will bolt in, but modifications to the magazines and ejector may be required. Rifles with two- stage triggers will also require modifications to the chassis. The Ruger Gunsite Scout in 223/5.56mm requires the use of this magazine

MDT Generation 2 LSS Rifle Chassis System Dimensions

Dimensions shown are based on Remington 700 Short Action. It can be shorted significantly using a carbine (collapsible) buttstock. If you prefer using a fixed rifle stock, take a look at our LSS-XL chassis.

MDT Generation 2 LSS Rifle Chassis Dimensions

ORYX Rifle Chassis System By MDT

Picture of a ORYX Rifle Chassis System By MDT
Picture of a ORYX Rifle Chassis By MDT

ORYX Rifle Chassis System By MDT

MDT introduces ORYX brand as a complete bolt-action chassis system for under $400. MDT has introduced a new chassis and brand with the release of the ORYX. The ORYX is a one-piece integrated aluminum chassis and buttstock created to improve the consistency and accuracy of a bolt action rifle that retails for under four hundred dollars.

What Makes the ORYX Chassis so Great?

ORYX is a one-piece integrated aluminium chassis and buttstock created to improve the consistency and accuracy of your bolt action rifle.

  • Free Floating Barrel: We let the bore do the chore. The ORYX keeps your barrel free of any contact with the chassis components for greater consistency.
  • Solid Action Interface: Each ORYX is designed for your specific rifle model – holding your action solid for better accuracy.
  • Integrated Rifle Stock: From the forend to the buttpad – ORYX is one piece of aircraft grade aluminium. Solid. Straight.
  • Contoured Forend Grip: You always have your hands on your rifle – why not make it feel perfect when you hold it? The ORYX fits great in your hands and sits solid on barricades and platforms. And for those cold days in the woods or when things heat up at the range the ORYX polymer side panels keep your hand’s comfortable no matter the conditions.

ORYX Chassis Specifications

  • Made of hard anodized T6061 aluminum
  • Adjustable comb
  • Adjustable length of pull
  • M-LOK slots on bottom of the forend to attach bipods and other accessories
  • Flared magazine well to improve and speed up the loading process
  • Mag well acts as barricade stop
  • Multiple QD attachment points
  • Includes MDT contoured pistol grip

Polymer side panels provide added handling and ergonomics – including a thumb shelf – which lends itself to a variety of hand positioning and shooting techniques.

Weighing in at 3.2 lbs, the ORYX is the perfect platform for a hunting rifle.  The ORYX can accommodate up to a 1.25″ straight taper barrel, which makes the ORYX perfect for a precision rifle build.

The ORYX is currently available for the Remington 700, Howa 1500, and Tikka T3. Releases for the Remington 783, Howa Mini, and Ruger American are slated for early 2019.

MDT LSS-22 22LR RIFLE CHASSIS SYSTEM

MDT LSS-22 Chassis for Rimfire Bolt Action Rifles
MDT LSS-22 Chassis for Rimfire Bolt Action Rifles

MDT LSS-22 22LR RIFLE CHASSIS SYSTEM

The Modular Driven Technologies MDT LSS-22 Chassis System for .22LR caliber rifles is lightweight and compact, and adopts the same footprint as the centerfire MDT LSS Chassis. You will notice a significant improvement in accuracy due to the V-shaped bedding and free floated fore-end, which allows for barrel contours up to 1″ in diameter.

The LSS-22 Chassis System is manufactured out of billet 6061-T6 aluminum, and has been finished with Cerakote™ in Black or Flat Dark Earth (FDE).

To keep this chassis system compact, MDT has designed designed the rifle chassis to take collapsible AR-15 buttstocks. Fixed buttstocks can also be mounted with the use of a fixed stock adapter.

The LSS-22 uses your factory magazine and each chassis is compatible with all factory barrel contours.

Because we have lowered the buttstock interface, The Savage Mark II, CZ 455 and Ruger American are able to use iron sights with this chassis. If you are using a scope, we recommend a stock with a cheek riser. Visit Modular Driven Technologies

MDT LSS 22 Chassis System Compatibility

The MDT LSS-22 chassis system is currently manufactured for the following bolt action rifle platforms:

  • Ruger American
  • CZ 455
  • Browning T-Bolt
  • Savage Mark II
  • Anschutz Match 54 – compatible only with models 1710 and 1712
  • Anschutz Match 64 – compatible only with models 1416 and 1417

The LSS-22 will not fit 17 HMR or 22 WMR versions. Updates to accommodate magnum rifles are planned for late-2017.
The LSS-22 will fit all factory heavy barrels.

Important Notes

  • The Ruger American requires the two OEM fixing components in addition to the magazine
  • The Browning T-Bolt requires the OEM magazine holder in addition to the magazine
  • The Savage Mark II, CZ 455 and Ruger American are able to use iron sights.

Mounting and Compatible Accessories

The LSS-22 chassis is designed to accept any AR-15 buttstock and pistol grip (purchased separately), and allows for customization with a wide variety of accessories. Mounting holes are spaced for Magpul style L5 (11 slots) and L3 (7 slots) rails (1.600” / 3.200”) to be used on the bottom of the fore-end.

MDT LSS 22 Chassis System Specifications

  • Up to 21% increase in accuracy
  • CNC Machined from 6061 aluminum
  • Cerakote Finish (in Black or Flat Dark Earth)
  • Hole spacing for Magpul L5 (11 slot) and L3 (7 slot) rails
  • Designed for collapsible AR-15 buttstocks
  • Accepts AR-15 pistol grips
  • Lightweight, free-floating modular fore-end
  • Accommodates barrels up to 1″ diameter.
  • Length of pull of 11.5”-14.75” (based off Hogue stock)
  • Compatible with OEM Magazines
  • Weight: 1.6lb – 1.8lb

WHAT YOU GET, AND WHAT YOU NEED

The LSS-22 Chassis System comes as a 1-piece chassis, with all required mounting hardware included. This includes new action screws and a screw for the pistol grip.

To install this chassis on your rifle, here are some additional items you will need to purchase:

  • Any AR-15 buttstock. For fixed buttstocks, you will need the fixed stock adapter. We have also designed the Skeleton Carbine Stock for our LSS chassis.
  • A buffer tube for your buttstock (both mil-spec and commercial work with our chassis)
  • An AR-15 pistol grip. Ideally without a beavertail, or with a soft (bendable) beavertail
  • Your original factory magazine

MDT LSS 22 Chassis System Installation Videos:

For installation of Browning T-Bolt click here
For installation of CZ- 455 click here
For installation of Anschutz 54 click here
For installation of Anschutz 64 click here
For installation of Savage Mark II click here
For installation of Ruger American click here

MDT LSS 22 Chassis System Dimensions

Note that the version shown uses the Skeleton Rifle Stock with a fixed stock adapter. It can be shortened significantly using a carbine (collapsible) buttstock.

MDT LSS 22 Chassis Dimensions

MDT LSS 22 Chassis Dimensions

MDT TAC21 Price

MAGPUL PRO 700 REMINGTON 700 RIFLE CHASSIS SYSTEM

Picture of a Magpul Pro 700 Rifle Chassis
Pictures of Magpul Pro 700 Rifle Chassis System in Colors Flat Dark Earth, Black and Olive Drab

Magpul Pro 700 Rifle Chassis System

When Magpul announced the Remington 700 Hunter Stock I remember thinking to myself that it wouldn’t be long until we see a precision rifle chassis from them. I also remember thinking that a well designed priced right precision rifle chassis from Magpul could dominate the low to mid range rifle chassis market. Well I’m here to report the good news that Magpul has officially announced the “Magpul Pro 700” rifle chassis. Unfortunately though I’m more than a little surprised by the $1000 MSRP. That is three times the cost of the hunter stock and in my opinion about 1/3 higher than it should be because at that price shooters are at the price of a complete Savage Stealth or Ruger Precision Rifle. Those are great tack driver chassis based rifles for the cost of the Magpul Pro 700 chassis. Insult to injury the lack of an ARCA plate is a deal breaker for precision rifle crowd. Now with that said I’m a big believer in actually trying hardware first hand instead of relying on critical negative reviews of a product very few have seen or touched. Additionally Magpul still has time to address any perceived shortcomings pointed out by the community.

Magpul Pro 700 Rifle Chassis System Description

The Magpul Pro 700 Rifle Chassis System is an uncompromising, full featured precision rifle chassis for short action Remington® 700 actions and other Remington® 700 footprint actions. The Pro 700 combines innovative engineering, precision machining, Mil-Spec quality finishes, and an extensive list of purposeful design features with complete adjustability to provide demanding end users with the most comprehensive available precision rifle platform solution for true out of the box performance.

Based on a full billet aluminum skeleton and clad in Magpul polymer for environmental comfort, noise mitigation, and ergonomics, the Pro 700 is also fully ambidextrous. Capable of fitting both right and left-handed actions with the simple swap of a bolt-cutout plate, and with a reversible cheek riser and reversible hinge on the folding version, “lefties” haven’t been “left out.”

Made in U.S.A.

FEATURES

  • Type III hard anodized machined 6061-T6 billet aluminum V-bedding block, body, adjustment knobs and forend with high strength injection molded polymer body covers
  • Ambidextrous bedding block can be changed by swapping the QD sling swivel plate and bolt cut out plate for left or right hand actions using a 1/8” hex wrench
  • Folding stock with push-button activated durable steel hinge with Melonite® finish is reversible for left or right folding capability with the use of a 5/32” hex wrench. A fixed stock adapter is available for a non-folding stock solution
  • Folding stock is also designed to capture the bolt handle when folded and is compatible with a large variety of aftermarket bolt knobs and handles
  • Optional inline mount for clip-on night vision and thermal imaging devices
  • Overall LOP adjustment range is 13.25” – 15.125”
  • Butt pad height can be adjusted up 1.33” and down .90” and is adjustable left or right 5 degrees
  • Comb height adjustment has a 1” range with a secondary locking knob to eliminate movement in the cheek riser
  • Cheek riser features a 3-position fore/aft adjustment of +.375”, 0” and -.375” which can also be changed for left or right side usage
  • Injection molded polymer grip with 5 degree forward edge sweep and enlarged palm swell with 7 degree aft edge sweep, with a .75” fore/aft trigger reach adjustment
  • Additional grip option included with a more aggressive forward sweep (8 degree forward / 20 degree aft edge sweep)
  • Durable steel rotation limited QD sling swivel mounts with Melonite® finish fits up to 1.5” push button swivels
  • M-LOK® slots for accessory mounting on the forend (left-6/right-6/bottom-7) and the stock (bottom-2)
  • Integrated AICS pattern magazine well optimized for PMAG® 5 & PMAG® 10 7.62 AC™ magazines as well as most other AICS pattern short action magazines
  • Large trigger guard allows for use with gloves and accepts most factory and aftermarket curved or flat triggers
  • Low-profile, anti-snag ambidextrous magazine release is made of Melonite® treated steel for wear and corrosion resistance
  • Ambidextrous thumb shelf for firing hand thumb placement

ITAR
International Traffic in Arms Regulations Controlled Product

Specs

SPECIFICATIONS*

  • Weight –  5.4 lbs
  • Height at Butt Plate – 5.2”
  • Max width – 1.86”
  • Length – 32.7” – 34.6” (23.5” when folded)

* Specifications based on factory configuration.

Magpul Remington Pro 700 SA Adjustable Rifle Chassis

Magpul’s Pro 700 Rifle Chassis combines innovative engineering and precision machining to create a full featured precision rifle chassis for Remington 700 actions. Based on a full billet aluminum skeleton, the Magpul Pro 700 Rifle Chassis is clad in Magpul polymer for comfort, noise mitigation, and ergonomics. With the swap of a bolt-cutout plate, a reversible cheek riser, and reversible hinge the chassis is fully ambidextrous, ensuring that left handed shooters are included in the fun!

  • Machined from 6061-T6 billet aluminum, with Type III hard anodizing
  • Ambidextrous bedding block can be switched for right or left handed shooters
  • Reversible, durable push-button hinge to fold the stock
  • Overall LOP adjustment range is 13.25”-15.125”
  • Butt pad height adjustment from 1.33” down to .90”, also adjust 5 degree left or right
  • Comb height range adjusts 1” with a secondary locking knob, eliminating movement to the cheek riser
  • Cheek riser features a 3-position fore/aft adjustment of +.375”, 0” and -.375” which can also be changed for left or right side usage using only a common hex wrench
  • Chassis features an injection molded polymer grip with 5 degree forward edge sweep and enlarged palm swell with 7 degree aft edge sweep for enhanced user comfort combined with a .75” fore/aft adjustment range using a common hex wrench
  • Additional grip option included that features a more aggressive sweep and enlarged palm swell
  • Durable cast steel rotation limited QD sling swivel mounts with Melonite® finish fits up to 1.5” push button swivels
  • M-LOK  slots available for accessory mounting
  • Integrated AICS pattern magazine well of reinforced polymer construction optimized for PMAG® 5 & PMAG® 10 7.62 AC™ magazines as well as most other AICS pattern short action magazines
  • Large trigger guard accepts  most factory and aftermarket curved or flat triggers, and can be used with gloves
  • The magazine release is melonite treated steel that is low-profile and ambidextrous

The Magpul Remington 700 Pro Chassis fits up to an MTU barrel contour and is available in black, flat dark earth, and od green. The Remington 700 Pro Chassis would be a great upgrade to an existing gun, or for your next build!

MDT LSS XL Gen2 Rifle Chassis System

Picture of a MDT LSS XL Gen2 Rifle Chassis System
Modular Driven Technologies LSS XL Gen2 Rifle Chassis System

MDT LSS XL Gen2 Rifle Chassis System

Increase accuracy and ergonomics of your rifle with the Modular Driven Technologies LSS XL Gen2 chassis system. The LSS-XL Gen2 is a longer and more feature-rich version of the original MDT LSS chassis system. The LSS-XL Gen2 has been updated with a bold, modern new look inspired by the popularity of the MDT ESS chassis line, while maintaining and improving upon the overall aesthetic of an MDT chassis. The LSS-XL Gen2 allows you to convert your bolt action rifle to a highly versatile rifle allowing you to adjust the ergonomics with the use of AR-15 buttstocks and grips, and at the same time converting it to an external box magazine fed rifle.

Visit Modular Driven Technologies

MDT LSS XL Gen2 Rifle Chassis System

Increase accuracy and ergonomics of your rifle with our LSS-XL Gen2 chassis system. The LSS-XL Gen2 is a longer and more feature-rich version of our LSS chassis system. The LSS-XL Gen2 has been updated with a bold, modern new look inspired by the popularity of the ESS chassis line, while maintaining and improving upon the overall aesthetic of an MDT chassis.

The LSS-XL Gen2 allows you to convert your bolt action rifle to a highly versatile rifle allowing you to adjust the ergonomics with the use of AR-15 buttstocks and grips, and at the same time converting it to an external box magazine fed rifle.

Short Action

  • Remington 700 Short Action – Fixed and Carbine Buttstocks – Shipping Nov 14
  • Tikka T3 Short Action – Fixed and Carbine Buttstocks – Shipping Nov 23
  • Howa 1500 Short Action – Fixed and Carbine Buttstocks – Shipping Dec 13
  • Ruger American Short Action – Carbine Buttstocks – Shipping Dec 13
  • Savage Short Action – Fixed and Carbine Buttstocks – Shipping December 8
  • Lithgow Short Action – Carbine Buttstocks – Shipping Jan 6
Long Action 
  • Remington 700 Long Action – Fixed and Carbine Buttstocks – Shipping December 15
  • Tikka T3 Long Action – Fixed and Carbine Buttstocks – Shipping Dec 27
  • Howa 1500 Long Action – Fixed and Carbine Buttstocks – Shipping Dec 29
  • Savage Long Action – Fixed and Carbine Buttstocks – Shipping December 21

MDT LSS XL Chassis Details

The original LSS-XL chassis system was designed as a variant of our highly popular LSS chassis. The LSS chassis was designed for use with compact, short barrelled rifles. Many customers really liked the LSS chassis, but wanted to use a fixed buttstock, and get their bipod out further forward.

This prompted us to design the first-generation LSS-XL chassis system, which has a forend extended by 3″ and was designed to accept fixed rifle stocks without the need of using any adapters.

After the successful launch of our ESS chassis system, requests started pouring in for the new features that had been introduced on the ESS chassis to be rolled out on our other chassis systems. In response, we have upgraded our LSS-XL chassis line with a Gen2 lineup that incorporates the following new features:

  • Bold, modern new look
  • Ambidextrous magazine release
  • Thumbrest above trigger guard
  • Larger barrel channel to accommodate barrels up to the diameter of the action
  • M-Lok pattern attachment slots on all 5 sides of the forend
  • Barricade-stop grooves ahead of mag-well
  • Side-relieved mag well to accommodate bulging magazines
  • Collapsible and fixed buttstock interface options

The chassis is designed with V-shaped bedding surfaces, allowing you to drop your rifle right in without the need for additional bedding. The bottom profile of the V-block cutout has been kept round and close to the action without making contact, maintaining maximum strength. The LSS-XL Gen2 chassis will free float barrels up to 1.350” diameter.

MDT LSS XL Gen2 Mounting and Compatible Accessories

The LSS-XL Gen2 chassis are designed to accept any AR-15 buttstock and pistol grip (purchased separately), offering the option to customize from the wide variety of  Accessories available on the market.

The LSS-XL Gen2 chassis accepts AICS-pattern external box magazines, and supports installation of M-Lok patterned accessories along the forend.

Note: Long action magazines come in 4 different lengths: 3.560”, 3.715″, 3.775″ and 3.850″. Unless otherwise specified, our long action chassis use 3.715 length magazines.

The chassis will accept recoil lugs up to .350″ (8.9mm) thick.

MDT LSS XL Gen2 Chassis Specifications

  • Increases accuracy by up to 21%
  • CNC Machined from 6061 Aluminum.
  • Cerakote finish in Black or Flat Dark Earth.
  • M-Lok pattern attachment system on all 5 faces of the forend.
  • Collapsible buttstock interface option designed for collapsible AR-15 buttstocks, including the MDT Skeleton Carbine Stock.
  • Fixed buttstock interface option designed for fixed AR-15 buttstocks, optimally the MDT Skeleton Rifle Stock V5.
  • Accepts most AR-15 Pistol Grips.
  • Lightweight, free-floating modular forend.
  • Will accommodate barrels up to 1.350″ diameter.
  • Compatible with AICS style magazines.
  • Weight: 1.6lb – 2.0lb, depending on the rifle model.

What you get, and what you need

The LSS-XL Gen2 chassis system comes as a 1-piece chassis, with all required mounting hardware included. This includes new action screws, and a screw for the pistol grip.

To complete this chassis on your rifle, the additional items you need to purchase are:

  • Any AR-15 buttstock.
  • A buffer tube for your buttstock. (Both milspec and commercial work on our chassis)
  • An AR-15 Pistol Grip.  For fixed interface chassis, a grip without a beavertail, or with a soft (bendable) beavertail must be used.
  • At least one magazine

Important Notes

Howa 1500 / Weatherby Vanguard actions

Only our polymer magazines will work in the short action rifles due to the flat bottom. The long action rifles will work with the metal 3.715″ magazines without fitting.

For .223 models the bolt stop prevents the bolt from moving back far enough to pick up the rounds.  This can easily be modified by removing the bolt stop and trimming the contact face.

Savage models 10/110 11/111 12/112 16/116

For rifles with the bolt release at the bottom, the bolt release can be engaged through the side of the chassis, using a pin or tool. (Not included)

Savage Long Action in 338 Lapua Magnum

Savage Long Action chassis systems all use 3.715″ AICS magazine wells. The BA in 338 Lapua Magnum uses 3.850″ magazines and have recently switched to a thicker recoil lug which will not fit our chassis. The ESS has been specifically designed around the current BA 110 in 338 Lapua Magnum.

Tikka T3 – Long Calibers

Only our Metal 3.560 magazine will fit with the chassis for this action and needs to be purchased separately.

Ruger American

The action screw is located directly above the magazine lever. This means that the magazine lever needs to be installed AFTER installing the action into the chassis. Detailed instructions are provided, and an installation video can be found here.

Ruger American in 223/5.56mm requires the use of a magazine with extended feed lips, such as this one: http://shopruger.com/556-NATO-10-Round-Magazine/productinfo/90458/.  This is to prevent the round from being released before entering the chamber.
Does not work with 300 Blackout

This chassis will also accept the Predator and Ranch versions. Please read the notes above regarding magazines for 223/5.56 rifles.

Dimensions shown are based on Remington 700 Short Action. *Skeleton Carbine Stock show below is the 9.75″ Version

MDT LSS XL Gen2 Rifle Chassis Dimensions
Picture of a MDT LSS XL Gen2 Rifle Chassis System FDE