Below are a few pictures of the Atlas PSR Bipod BT46-LW17 minutes after in un-boxing the bipod.
Often on the web pictures do not tell the story of a products build quality. Make no mistake This bipod is a precision piece of shooting equipment.
Atlas PSR Bipod BT46-LW17
We purchased the Atlas Bipod BT46-LW17 as the bipod of choice for our MDT TAC21 20 inch Suppressed Modular Rifle project. We look forward to comparing the Atlas Bipod BT46-LW17 to our GG&G, Harris and BOBRO Bipods. While I typically try to purchase as much as possible from Brownells this time around I went with Amazon because for an additional $3.99 I can have the bipod in hand next day and Im anxious to complete the project this week. Here is the Brownells link for those so inclined to support our efforts by visiting our sponsor.
For several years, Atlas bipods have dominated the tactical bipod market. The PSR model is the latest offering from Atlas and makes several key improvements over prior models. Fore and Aft pivot limiting bosses and strengthened leg bosses allow the PSR to adapt quickly to any position. The new Non-rotating legs feature internal construction of T7075 aluminum for increased rigidity when building a position. The Atlas PSR is the finest tactical bipod on the market.
- Mounts directly to any 1913 style Picatinny rail via included ADM 170-S Lever.
- Height Range approximately 4.75 – 9.0″.
- 15 degrees +/- of preloaded Pan.
- 15 degrees +/- of preloaded Cant.
- Leg positions are; stowed back, 90 degrees straight down, 45 degrees forward and stowed forward.
- Fore and Aft pivot limiting Bosses*
- Non-Rotating Legs*
- Strengthened Leg Boss*
- Inner Leg constructed from T7075*
- Weight 13.61 ounces.
- Available in black only.
- Lever Mount With ARMS 17S Mount
- Construction from T6061 Aluminum, Hard Anodized blackStainless steel springs and fasteners
- UHMW components used for smooth tracking
- 15 degrees +/- of preloaded Pan
- 15 degrees +/- of preloaded Cant
- Preload on Pan and Cant can be tightened by means of the knurled knob
- Picatinny Rail Mount interface by either standard machine screw fastener based clamp or optional ADM 170-S lever mount.
- Non orientated leg positioning use either hand to move leg into any of the four leg positions
- Leg positions are; stowed back, 90 degrees straight down, 45 degrees forward and stowed forward.
- All 4 leg positions are solid allowing the shooter to load the bipod at the 45 and 90 degree positions.
- Non orientated leg length adjustment, Outer leg slides on the Inner leg locating on any of five positions ¾” apart and can be done by either hand.
- Optional 3” leg extensions to increase height available.
- Standard soft durable Rubber feet that are suitable for many surfaces.
- Optional interchangeable Ski and Multi Spiked style feet can be swapped in the field with the press of a ball plunger with a bullet tip.
- Optional mounting systems available for Accuracy International and Sako rifles.
- Estimated range of elevation on the BT46 is 5-9” from the surface up to the rail.
- Made in America
Atlas Bipod BT46-LW17 Downloads:
Ruger Precision Rifle Downloads:
- Ruger Precision Rifle – Instruction Manual
- Ruger Precision Rifle Exploded View
- Ruger Precision Rifle Specification Sheet
- American Rifleman Review Ruger Precision Rifle
Sturm, Ruger & Company, Inc. (NYSE: RGR) Combatrifle.com is excited to announce the introduction of the Ruger Precision Rifle™. An all-new, in-line recoil path, bolt-action rifle, the Ruger Precision Rifle is highly configurable and offers outstanding accuracy and long-range capability. In production now, the Ruger Precision Rifle is available in .308 Win., 6.5 Creedmoor, and .243 Win.
“Whether shooting tight groups at 100 yards, or reaching out to steel plates at 1,000 yards or beyond, shooting the Ruger Precision Rifle is a highly satisfying experience,” said Mike Fifer, Ruger CEO. “The engineering applied to the action of the Ruger American Rifle® brings world-class performance to Ruger long-range marksmanship.”
The Ruger Precision Rifle incorporates an in-line recoil path directly from the rear of the receiver to the buttstock, eliminating the need for traditional bedding or a “chassis” system, and provides maximum accuracy potential by simplifying the rifle’s response to recoil. The Ruger® Precision MSR stock is adjustable for length of pull and comb height, offering a proper fit over a wide range of shooter sizes, outerwear, and shooting positions. While easily adjusted, the length of pull and comb height changes lock solidly in place and will not move while firing. The stock also features multiple QD sling attachment points, a bottom Picatinny rail for monopod attachment, and a soft rubber buttpad. The left-folding stock hinge (which provides access to the bolt) is attached to an AR-style buffer tube and accepts AR-style stocks.
The Ruger Precision Rifle features a Multi-Magazine Interface, a patent-pending system that functions interchangeably with side-latching M110/SR25/DPMS/Magpul® magazines and front-latching AI-style magazines. Two, 10-round Magpul PMAG® magazines are shipped with each rifle.
The highly accurate, free-floated barrel is cold hammer-forged from 4140 chrome-moly steel, and features 5R rifling for minimum bullet upset. The rifle is specified with minimum bore and groove dimensions, minimum headspace, and a centralized chamber. The medium contour (.75″ at the muzzle) barrel features a thread protector over the 5/8″-24 threads, which allow for the fitment of muzzle accessories such as sound suppressors. Barrels can be replaced easily by a competent gunsmith using AR-style wrenches and headspace gauges.
The Ruger Precision Rifle’s “upper” receiver and one-piece bolt are precision CNC-machined from pre-hardened 4140 chrome-moly steel to minimize distortion. The three-lug bolt with 70-degree throw is easily manipulated and features dual cocking cams, and a smooth-running, full-diameter bolt body. An oversized bolt handle is fitted for positive bolt manipulation and features 5/16″- 24 threads for easy customization. The “lower” receiver is precision CNC-machined from aerospace-grade 7075-T6 aluminum forging and is Type III hard-coat anodized for maximum durability. The magazine well front is contoured for a positive grip for bracing against shooting supports. The rifle also sports a 20-MOA Picatinny rail secured with four, #8-40 screws for increased long-range elevation capabilities.
The Ruger Precision Rifle can easily be configured with AR-style grips, safety selectors, and handguards. The rifle is equipped with a Ruger extended trigger-reach AR-style grip, a left-side, 45-degree safety selector, and a Samson Evolution Keymod handguard. A short section of Picatinny rail is provided with the rifle for the fitment of accessories such as a bipod, and a QD sling cup also is included.
The Ruger Marksman Adjustable™ trigger provides a crisp let-off and is externally adjustable with a pull weight range of 2.25 to 5.0 pounds. The hex wrench for the pull weight adjustment provided with the rifle is stored in the bolt shroud, as is a bolt disassembly tool for accessing the striker and striker channel.
The Ruger Precision Rifle is available in three models: .308 Win. with 1:10 twist, 20″ barrel weighing, 9.7 lbs.; 6.5 Creedmoor with a 1:8 twist, 24″ barrel, weighing 10.6 pounds; and .243 Win. with a 1:7.7 twist, 26″ barrel, weighing 11.0 pounds.
As promised I am now the proud owner of a Modular Driven Technologies TAC21 Chassis in Flat Dark Earth. Quite surprised to receive the chassis so quickly. It arrived before I finished ordering the rest of the parts for the project. I received the chassis with one AICS magazine manufactured by MDT. First look was a jaw dropper. The construction and finish are nothing short of impeccable. I could not visually locate a single flaw on the chassis or in the finish of the chassis. Im hopeful that the assembling will be equally as pleasing and form follows function.
As an update to the project another decision have been made. I will with 100% certainty be utilizing an Atlas BT46-LW17 Bipod. The Modular Driven Technologies TAC21 stock has been narrowed down to a Magpul PRS, Magpul UBR, ERGO F93 PRO Stock or Command Arms Advanced Sniper Stock.
Click the following link to view the progress of MDT TAC21 20 inch Suppressed Modular Rifle project.
Modular Driven Technologies TAC21
MDT TAC 21 Remington 700 Chassis System Inbound
As mentioned previously the first project at modularrfle.com is the “MDT TAC21 20 inch Suppressed Modular Rifle” project. We already have the Remington Model 700 SPS Tactical AAC-S on hand on now I am happy to report that the MDT TAC 21 Remington 700 Chassis System is inbound! Don’t be put off by the Brownells backorder status. I spoke with the fine folks at Modular Driven Technologies and they have tripled their production output on the MDT TAC 21 Remington 700 Chassis System.
MDT TAC 21 Remington 700 Chassis System Details
The MDT TAC21™ chassis system a combination of benchrest accuracy, superior ergonomics and specialized design. This chassis brings the bolt action rifles to the next level in versatility and modularity, with an instant improvement in accuracy.
The chassis system is manufactured out of billet 6061-T6 aluminum, which has been hard anodized to mil spec type III for extra strenth, and has been finished with Cerakote™ in Black or Flat Dark Earth (FDE).
TAC21™ chassis is engineered to minimize warping and distortion. The rifle receiver only makes contact with the TAC21™ chassis on the V shape bedding and recoil lug area insuring the best accuracy and repeatability. The generous clearance on the fore-end makes any barrel (diameter up to the receiver size – 1.350”), free floating.
Inherently the TAC21™ has a straightline design, meaning that the recoil comes straight back instead of making the front of the rifle kick upwards. This results in more accurate and quicker follow up shots. This also translates to a decrease in felt recoil and comfort.
MDT TAC 21 Remington 700 Chassis System Compatibility
The TAC21™ chassis system is currently manufactured for the following bolt action rifle platforms:
- Remington 700 Short Action (.223 and .308 bolt faces)
- Remington 700 Long Action (.300WM, .338LM, 7mm, 30.06)
- Savage Short Action, Models 10, 11, 12 and 16 (.223 and .308 bolt faces)
- Savage Long Action, Models 110, 111, 112 and 116 (.300WM and .338LM)
- Tikka T3 – Short Calibers (.223 and .308 bolt faces)
- Tikka T3 – Long Calibers (.300WM, 6.5×55, 7mm, 30.06). Requires MDT 3.560 Magazine.
MDT TAC 21 Remington 700 Chassis System Mounting and Compatible Accessories
The TAC21™ chassis is designed to accept any AR-15 butt-stock and pistol grip (purchased seperately), offering the option to customize from the wide variety of Accessories available on the market.
The TAC21™ chassis uses external box style magazines in .223 and .308 caliber for Short Action and .300WM or .338LM magazines for Long Action rifles, and supports installation of bolt on MIL-STN-1913 accessory mounting rails on the fore-end and side of the action housing. Mounting holes are spaced for Magpul style L5 (11 slots) and L3 (7 slots) rails (1.600” / 3.200”).
With a top full length MIL-STN-1913 accessories mounting rail. The built-in mounting rail has 20 MOA (Minutes of Angle) on the action housing and is parallel to the barrel axis on the fore-end.
Note: Long action magazines come in 3 different lengths: 3.715″, 3.775″ an 8.050″. Our chassis use 3.715 magazines. If you purchased the Remington 700 Tactical Chassis Rifle, the magazine well is 3.775.
MDT TAC 21 Remington 700 Chassis System Specifications
- Increases accuracy by up to 28%
- Construction aluminum hard anodized to mil spec type III
- Cerakote Finish in Black or Flat Dark Earth
- 20 MOA built in top rail
- Hole spacing for Magpul L5(11slot) and L3(7slot)Rails
- Lightweight, free-floating modular fore-end
- Will accommodate barrels as thick as the action
- Compatible with AICS style magazines in .223 or .308 (SA) and 300WM, 30.06, 338LM (LA). (Long Action Magazine length 3.715)
- Weight: 3lb – 3.6lb
What you get, and what you need
The TAC21 chassis system comes as a 4-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 or our Skeleton Rifle Stock.
- A buffer tube for your buttstock. (Both milspec and commercial work on our chassis)
- An AR-15 Pistol Grip
- At least one magazine
Surgeon Rifles Short Action Receiver 591SA Repeater
So you want to build your dream bolt gun, the ultimate precision rifle but do not know where to start? One path would be like I have done. Go out purchase a Remington 700 Rifle or Barreled action. Throw away the most of the factory Remington parts, get the action blueprinted, new bolt know welded on etc or you can simply start out right and purchase a Surgeon Rifles Short Action Receiver 591SA Repeater. There is probably no better foundation than the Surgeon Rifles Short Action Receiver 591SA Repeater and while the price is steep the cost is probably a wash compared to the custom Remington 700. In fact the Surgeon Rifles Short Action Receiver 591SA Repeater will probably be cheaper and definitely superior to the Remington 700.
Below is the description from Brownells. They sum it up nicely as do the Brownells Reviews at their site.
Complete short-action receiver and bolt assembly give the reliability and smoothness of the classic Remington 700 action combined with innovative features designed specifically for police, military, and civilian precision shooters. Receiver is machined, not forged, to exceptionally tight tolerances from a solid billet of 4340 steel for precise dimensions and superb strength. Raceways are EDM-cut to be perfectly square with the receiver face, threads, and bolt locking lug surfaces. A rail in the left raceway eliminates misfeeds caused by a shell getting stuck in the raceway, and the extended ejection port ensures plenty of clearance for fired cases. Full-length, 20 M.O.A. MIL-STD 1913 Picatinny rail milled into the receiver top offers exceptional scope mounting flexibility and stays perfectly aligned with the action centerline and barrel tenon threads because it can’t work loose or get misaligned by impact. Hefty ¼” thick recoil lug machined into the underside spreads recoil force over a larger area than standard lugs. Bolt is machined from a single piece of 4140 steel billet, including .308 (.473″ diameter) breech face, extraction cam, and bolt handle; outside diameter and locking lugs are machined in a single operation, so the lugs are perfectly square with the bolt exterior. Bolt maintains a .007″ clearance out of battery, with .004″ clearance (.002″ per side) when closed. Streamlined, screw-on tactical bolt knob can be replaced with other aftermarket knobs to suit your needs. Shroud around the oversize bolt stop keeps out dust and dirt and prevents accidental release. All components are heat treated for hardness before final surface machining to prevent unwanted stress or warpage. Extractor, ejector, firing pin, shroud, and cocking piece are standard Remington 700 parts, and action accepts all triggers, stocks, and magazines compatible with the 700, greatly expanding customizing options.
Looking at the image above you can see a standard Remington 700 Action lacks the built in recoil lug, 20MOA picatinney, threaded bolt knob and fluted bolt.