Guide – Remington RACS versus Cadex Defence Dual Strike Rifle Chassis

Remington XM2010 RACS vs Cadex

Left:Remington XM2010 Features a RACS Chassis originally developed with Cadex Defence.

Right: The latest badass sniper rifle from Cadex Defence CDX Kraken

Remington XM2010 RACS vs Cadex

I always find it quite interesting as to what the predominant questions are that come from the contact pages at any of my websites. In the case of this website Modular Rifle I think all of the questions except for one have in one way or another pertained to The Remington RACS Chassis and variants used on the Remington Military Sniper Rifle XM2010 (currently known as the Remington M2010) and it’s visually similar but mechanically different siblings the Remington MSR, Remington PSR and the Remington CSR.

There’s is quite a bit of confusion about the Remington RACS and Cadex Chassis Systems which is completely understandable. Remington Military isn’t very forthcoming with information and Cadex Defence is evolving their modular rifle and chassis lineup with impressive speed.  Maybe we can sort some of it out with our guide below.


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Remington RACS vs Cadex Dual Strike

Remington RACS vs Cadex

What is Remington RACS?

RACS is the acronym for the Remington Military “Remington Accessory Chassis System” . The Remington RACS was developed by a joint effort between Remington Military and Cadex Defence.

The patent pending Remington Accessory Chassis System (RACS) incorporates state-of-the-art operator-defined attributes such as a free-float tubular design and a fully featured front handguard section. Operator selectable auxiliary rail sections in various lengths can be attached to any of the seven remaining facets of the octagonal handguard, which allows the operator to install clip-on in-line night vision systems. The folding RACS buttstock provides the operator with a wide variety of adjustments to allow setting the system to suit the shooter and the operating conditions.

Now the above all sounds good right? Remington also refers to the RACS as “Remington Arms Chassis System” The Remington Military website uses both variations. It took me a few minutes to realize the difference


Are Remington Defence RACS the Same as Cadex Defence Chassis?

Observant shooters have noticed that the Remington RACS closely resembles Cadex Defense Chassis. This makes perfect sense. The Original Remington XM2010 was developed by a partnership between Remington Military and Cadex Defence.

What Cadex Chassis did the Remington XM2010 sniper rifle use? The Cadex Dual Strike is the closest match but not identical.

What’s Better Remington RACS or Cadex Dual Strike? Cadex has been upgrading the Dual Strike pretty regularly. At this time Cadex is on their 4th generation Dual Strike. Remington Military has made no publicly known changes to the RACS since release. While I can’t say first hand which is better but I will be putting my money down on the Cadex. The Cadex is also less expensive then the Remington.

Remington Defense Chassis System versus Remington Accessory Chassis System

Remington Defense Chassis System versus Remington Accessory Chassis System

The Remington Arms Chassis System refers to the Remington RACS on a complete Remington M2010/XM2010 ESR Enhanced Sniper Rifle when bought or fielded as a package.

The Remington Accessory Chassis System version of the RACS is how Remington Military refers to the RACS when purchased as an accessory and without a barreled action. Remington only list this as being available in sort action.

Now my take is the Remington Military website is simply out of date. EuroOptic list the RACS as being available in 300 Winchester Magnum, Remington 700 Long Action.




There are multiple versions of Remington RACS. The RACS chassis that is used in the XM2010, M2010 Sniper Rifle and the RACS chassis’s used in the Remington MSR, CSR and PSR Sniper Rifles.

Remington MSR, CSR and PSR RACS versus Cadex Chassis Systems

The Remington RACS Chassis in use on the Remington Defense Modular Sniper Rifle “MSR” and Remington Defense MK21 Precision Sniper Rifle “PSR” use a proprietary bolt action receiver and interchangeable barrels. This Remington RACS chassis in not compatible with any other receiver or barreled action. This RACS Chassis will not accept a Remington 700 receiver or barreled action.

Compatibility Guide – Remington RACS vs Cadex Chassis

The Remington RACS is only compatible with the Remington 700 and Remington 700 clone long and short actions. On the other hand the Cadex line of Chassis is compatible with the following brands of rifle actions (not all chassis, not all rifle models).

  • Sako TRG
  • Stiller Tactical
  • X-Treme
  • Savage
  • Tika T3
  • McMillan
  • Surgeon 591, 1086 and 1581
  • Savage
  • Defiance Rebel
  • Remington 700
  • PGW Defence Technology Inc

Visit Remington, Visit Cadex Defence

Remington RACS | Remington Accessory Chassis System

Remington RACS | Remington Accessory Chassis System




Im not one to let appearances of a firearm influence me. At least I thought that was the case until I learned of the Cadex Kraken officially named Cadex CDX-MC Kraken. The Kraken looks as good in it’s physical form as it does on paper. I will own this rifle.


The new Cadex Kraken (Cadex Defence CDX-MC Kraken), is a multi-caliber rifle using an innovative (patent pending) barrel change system. This system is the only true no point of impact change between take-down and reassembly of the same barrel. Cadex Kraken is using traditional barrel to action threading system while incorporating a special tool designed to unscrew and torque its barrel from the breech side.


  • Muzzle Brake Ready – The Cadex Kraken is ready to accommodate a muzzle brake or suppressor.
  • V-Shaped Bedding System – Provides a stable platform that eliminates any movement of the action in the Cadex Chassis System.
  • Mirage Control Tube – Reduces image distortion from barrel heat.
  • Cadex Kraken Receiver
  • Bolt – 3 lug bolt with 60 degree bolt throw.
  • Bolt Knobs – A: Oversized cross hatch bolt knob (0.850″ x 2.625″), B: Grooved tactical knob (0.730″ x 2.8″), C: Knurled tactical knob (0.730″ x 2.8″), D: Rounded knob (0.981″ x 2.7″)
  • Barrel – In order for Cadex to offer the best extreme long range sub-MOA precision rifle, we selected Bartlein Barrels for the Kraken. Teamed with our Cadex designed 1.300” heavy barrel straight taper with barrel band and threaded muzzle for slip on suppressor or muzzle brake. All Cadex Kraken barrels are Match Grade, Single Point cut, 5R rifling with an optimized twist rate.
  • Recoil Lug – Heavy duty recoil lug
  • Trigger OptionsCadex DX1 Single Stage Trigger: The Cadex DX1 trigger is a single stage trigger adjustable about 1.5 to 5 lbs. It features an adjustable trigger shoe to improve ergonomics. Cadex DX2 Double Stage Trigger: The Cadex DX2 trigger is a double stage trigger adjustable about 2 to 5 lbs. Both stages can be adjusted separately. It features an adjustable trigger shoe to improve ergonomics.
  • Folding Butt Stock – Reverse folding butt stock offers bolt handle protection and ultra compact transport.
  • Locking Mechanism – Rattle free locking mechanism. Easy manipulation with gloves.
  • Folding Hinge – Offset cam to remove any free play
  • Tool Free Adjustable Butt Pad
  • Tool Free Adjustable Length of Pull
  • Tool Free Adjustable Cheek Rest
  • Full Length Dual Top Rail – The Cadex Kraken features a full length dual top rail. Available in 20 MOA, 30 MOA, or 45 MOA depending on the model.
  • Magazine Sleeve – Multiple magazine sleeves are available to fit most magazine types on the market.
  • Detachable Base – Removable for trigger maintenance or tuning without need to remove your action and lose your zero.
  • Pistol Grip – Finger grooved rubberized Ergo grip.
  • Trigger Guard – Oversized trigger guard and magazine release for easy manipulation with gloves.
MDT TAC21 Price

Cadex Field Tactical |Sniper Rifle |Rifle Chassis System

Cadex Field Tactical Chassis

Cadex Field Tactical Chassis – Recently I happened to come across a “new to me” firearm and firearm hardware oriented website called Eurooptic located in Montoursville PA. Eurooptic is definitely a bit different than typical shooting parts and accessories websites.

First off while they do offer a lot of optics I was more impressed with their line of sniper rifle related parts such as barrels, actions and chassis. Anyhow because the Cadex Chassis is close to my heart they happen to stock quite a few variants. Click here to see for yourself. Eurooptic will be the source of a Cadex Chassis for an upcoming XM2010 (Remington M2010) project

The Cadex Feild Tactical chassis are some of the best sniper rifle chassis available and are being utilized by military and police across the world. They offer a rigged and sturdy platform for building your dream rifle. The Cadex Field Tactical Chassis is the base for a rugged Law Enforcement sniper system with full rail capability. Delivered with full length 20 MOA top rail and accessory rails at 3, 6 and 9 o’clock.

Cadex Field Tactical Chassis

Cadex Field Tactical Chassis

The Cadex Field Tactical Chassis comes equipped with the following

  • Magpul fully adjustable stock with integrated monopod attachment.
  • Adjustable length of pull and cheek rest.
  • Aluminum detachable base removable for easy trigger maintenance or tuning without need to remove your action and lose your zero.
  • 20 MOA low profile full length dual top rail.
  • Finger grooved rubberized Ergo Grip.
  • Multiple magazine sleeves are available to fit most magazine types on the market.
  • Oversized trigger guard and magazine release for easy manipulation with gloves.
  • Small contour for end tube providing rail placement at 3,6 and 9 O’clock.
  • Roller bedding technology – Barreled action sits on 4 rollers to provide a stable platform that reduce barrel vibrations.
  • Composite detachable base

Available for refit of Remington, Savage, Stiller Predator, and Tikka long and short actions as well as Stiller Tac models.

MDT Remington 700 Sniper Rifle Chassis

MDT Remington 700 Sniper Rifle Chassis