CM10 375 Raptor AR10 Rifle

Get the PLACID 375 Suppressor for $50 off when purchased with a CM10 or CM7S firearm. Add a CM10 or CM7S firearm and PLACID 375 Suppressor to your cart.

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CM10 375 Raptor AR10 Rifle 16″

The Chattahoochee Munitions CM10 375 Raptor AR10 Rifle is a purpose-built large-frame semi-automatic platform developed around the capabilities of the .375 Raptor cartridge. Built with a 16-inch 1:7 twist barrel, centerfeed system, modified MDT metal magazine, adjustable gas system, adjustable buffer and premium components throughout, the CM10 is engineered around the heavy projectiles and specialized loads that distinguish the 375 Raptor.

Chattahoochee Munitions has extensive experience building firearms in specialized and less-mainstream calibers, including 375 Raptor, 8.6 Blackout, 338 Spectre, 338 Federal, 400 Legend, 243 Winchester, 22-250 Remington, 7mm-08 and 308 Winchester. Experience with both semi-automatic and bolt-action platforms helped shape the CM10 receiver system.

Rather than simply adapting an off-the-shelf large-frame AR, Chattahoochee Munitions developed the CM10 upper and lower receiver set around the requirements of large-caliber cartridges, including centerfeed operation, AICS-pattern magazine compatibility, strength, dependable feeding and compatibility with proven DPMS-pattern components.

The result is a purpose-built 375 Raptor AR10 Rifle capable of taking advantage of heavy subsonic ammunition as well as the cartridge’s higher-velocity capabilities.

Centerfeed System & Modified MDT Metal Magazine

One of the most important differences between the CM10 and a conventional large-frame AR is its feeding system. The CM10 375 Raptor is a centerfeed platform designed around an AICS-pattern magazine rather than a conventional double-stack AR10 magazine.

Each 375 Raptor AR10 Rifle includes a 10-round MDT metal AICS-pattern magazine modified by Chattahoochee Munitions specifically for the CM10 375 Raptor platform. The magazine works together with the rifle’s centerfeed barrel extension and receiver architecture to accommodate the large-diameter projectiles used in 375 Raptor ammunition.

The modified MDT metal magazine is also available separately from Chattahoochee Munitions. Additional magazines can be found on the CM10 375 Raptor Modified MDT Magazine product page.

A paddle-style magazine release is positioned in front of the trigger guard for convenient operation.

CM10 Billet Upper & Lower Receiver

• CNC machined from 7075-T6 billet aluminum
• DPMS Low Profile specification
• 16 TPI barrel nut compatibility
• DPMS-pattern barrel extension and BCG compatibility
• AICS-pattern magazine-compatible lower receiver
• Centerfeed configuration
• Lightweight FCG faces and magazine well
• Weight-reduction cuts on upper receiver
• No forward assist
• Fire/Safe engravings on both sides
• Integral trigger guard for increased strength
• Cobalt Kinetics Green Cerakote

Lower Receiver Components

• CM Ambidextrous Safety
• Paddle Magazine Release
• CM10 Pivot and Takedown Pins
• TriggerTech Duty Trigger
  • 3.5 lb Single-Stage Flat
  • 3.5 lb Single-Stage Curved
  • 3.5 lb Two-Stage Flat
• B5 Systems Coyote Grip

Receiver Extension & Stock

• B5 Systems Bravo Stock – Coyote
• CM Mil-Spec Buffer Tube – Cobalt Kinetics Green Cerakote
• QD End Plate
• Odin Works Adjustable AR10 Buffer

The adjustable buffer system works together with the 375 Raptor AR10 Rifle‘s adjustable gas system to provide additional tuning capability, particularly when configuring the rifle for suppressed and subsonic use.

CM10 Upper Receiver

CM10 Bolt Carrier Group

• Mil-Spec 9310 steel
• HPT bolt – High Pressure Tested / Proof Tested
• MPI bolt – Magnetic Particle Inspected
• Shot-peened bolt
• Nitride-coated bolt
• Nitride-coated carrier
• Nitride-coated gas key
• Gas key hardened to USGI specifications
• Grade 8 hardened fasteners
• Gas key staked per Mil-Spec
• Tool-steel extractor
• T.E.A. extractor spring
• Black extractor insert
• Mil-Spec Crane O-ring

Charging Handle, Gas System & Handguard

• CM10 Warhammer Ambidextrous Charging Handle
  • 7075 aluminum
  • Developed in collaboration with Breek Arms
• CM Carbine Gas Tube – Melonite
• Superlative Arms .875″ Adjustable Gas Block – DLC
• CM10 LWS 15″ M-LOK Handguard – Cobalt Kinetics Green Cerakote
  • 6061 aluminum
  • Steel barrel nut
  • QD attachment points at 3 and 9 o’clock
  • M-LOK attachment surfaces on sides and bottom
  • Full-length Picatinny top rail
• B5 Systems Coyote Rail Covers

CM 375 Raptor 16″ Barrel

At the heart of the rifle is the CM 375 Raptor 16-inch barrel, developed in collaboration with Mos-Tek for the CM10 375 Raptor AR10 Rifle.

• Caliber: 375 Raptor
• Barrel Length: 16″
• Material: 416R Stainless Steel
• Twist Rate: 1:7
• Rifling: 5R
• Muzzle Threads: 11/16×24
• Gas Journal: .875″
• Finish: Black Cerakote
• Barrel Extension: Centerfeed

The fast 1:7 twist rate is specifically suited to stabilizing the heavy projectiles that make the 375 Raptor particularly effective in subsonic applications.

Modified MDT Magazine

Includes:

• 1 × 10-round modified MDT metal AICS-pattern magazine

The magazine is modified by Chattahoochee Munitions for use with the centerfeed CM10 375 Raptor system and is also available separately for customers who need additional modified MDT magazines.

Dimensions & Weight

Overall Length: 34.875″–38.250″
Overall Weight: 8 lb 4 oz with unloaded magazine and no accessories
Length of Pull: 11.375″–14.50″

Weights and dimensions shown elsewhere on the product page may reflect shipping specifications.

PLACID 375 Suppressor & Subsonic Ammunition

The 375 Raptor AR10 Rifle was developed and tested with the Chattahoochee Munitions PLACID 375 Suppressor. The rifle has also been tested with a SilencerCo Hybrid 46.

For suppressed semi-automatic operation, Chattahoochee Munitions offers a dedicated 400gr Maker REX 375 Raptor subsonic semi-auto load. This ammunition is specifically configured for semi-automatic operation rather than simply using the company’s bolt-action subsonic load.

Performance with ammunition from other manufacturers may vary, particularly with subsonic loads. Semi-automatic operation depends on the ammunition, gas system, suppressor and other system variables working together appropriately.

A Complete 375 Raptor System

Chattahoochee Munitions approaches the CM10 as more than an individual rifle. The 375 Raptor AR10 Rifle, modified MDT metal magazine, dedicated semi-automatic 375 Raptor ammunition and PLACID 375 Suppressor are available as complementary components of the same 375 Raptor platform.

Customers who want to explore the broader 375 Raptor platform, including Chattahoochee Munitions firearms, ammunition and technical information, can visit The Raptor Paddock.

Limited Lifetime Warranty

Chattahoochee Munitions firearms, including the 375 Raptor AR10 Rifle, are covered by our Limited Lifetime Warranty.

• Limited to the original purchaser
• Limited regarding functional performance
• Limited regarding the firearm’s original configuration

Why Choose the CM10 375 Raptor AR10 Rifle?

The CM10 isn’t simply a conventional large-frame AR chambered in an unusual caliber. Its centerfeed architecture, modified MDT metal magazine, adjustable gas system, adjustable buffer, 1:7 twist 375 Raptor barrel, billet receiver set and suppressor-focused development make it a purpose-built platform for the cartridge.

For shooters looking for a 375 Raptor AR10 Rifle, particularly one intended for heavy subsonic ammunition and suppressed shooting, the CM10 combines the capabilities of 375 Raptor with a semi-automatic platform developed around the cartridge rather than simply adapted to accept it.