Chattahoochee Munitions manufactures this 375 Raptor rifle, the CM7S, a complete factory 16-inch bolt action finished in FDE Metallic Cerakote with Coyote furniture. It pairs a Mos-Tek 416R stainless barrel with a 1:8 twist, a TriggerTech trigger, and the CM7 billet aluminum chassis.
The 375 Raptor is a .375-caliber cartridge designed by Arne Brennan and based on the .308 Winchester case family. See every configuration in the Raptor Paddock, and read 375 Raptor ballistics for velocity, energy, and drop.
What Is a 375 Raptor Rifle?
A 375 Raptor rifle is a short-action bolt action or a large-frame AR10-pattern semi-automatic chambered for the 375 Raptor. The cartridge keeps the standard .308 bolt face, so it fits a short Remington 700-footprint action like the CM7S, and it fires both a 400 gr subsonic bullet for suppressed shooting and a 190 gr supersonic bullet for longer shots. This 16-inch 375 Raptor rifle runs both and needs no SBR registration.
CM7S Action and Trigger
The CM7S action is steel with a Remington 700 footprint and a full PVD coating. It has three locking lugs, a 60-degree throw, and a one-piece spiral-fluted bolt with a .718-inch body, an M16-style extractor, and a .062-inch firing pin, with the standard .308 bolt face the 375 Raptor uses. Wire EDM raceways, an integrated .300-inch recoil lug, a side-release bolt stop, an oversized bolt knob, and a pinned 20 MOA Picatinny rail complete the action of this 375 Raptor Rifle. The TriggerTech Remington 700 Primary trigger comes flat or curved, adjusts from 1.5 to 4.0 lb, and removes without tools.
Barrel and 1:8 Twist
The 16-inch barrel is made by Mos-Tek from 416R stainless steel with 5R rifling and a 1:8 twist, finished in E100 Blackout Cerakote, with a shouldered crown, 11/16×24 muzzle threads, and Remage barrel-nut mounting. The 1:8 twist gives the long 400 gr subsonic bullet a wide stability margin over Maker Bullets’ 1:11 guidance and stabilizes the 190 gr supersonic bullet easily. Read 375 Raptor twist rate and 375 Raptor barrel length for the details.
Ammunition and Magazine
From the 16-inch barrel, the Chattahoochee Munitions 190 gr Maker T-REX supersonic load averages 2,450 fps with 2,533 ft-lb at the muzzle and more than 1,300 ft-lb at 300 yards. The 400 gr Maker REX subsonic load carries about 842 ft-lb at 100 yards for suppressed shooting. Use the bolt action loads: 400 gr subsonic for bolt action and 190 gr supersonic for bolt action. Bolt action and semi-auto 375 Raptor ammunition are loaded separately. Full tables are in 375 Raptor ballistics.
One 10-round Magpul PMAG 7.62 AC AICS-pattern magazine is included, and spares are available as CM7S 375 Raptor magazines.
Suppressing the CM7S
Because the CM7S is a manually operated bolt action, Chattahoochee Munitions recommends an enclosed suppressor with both subsonic and supersonic ammunition, such as the enclosed PLACID 375. Confirm any suppressor is rated for .375 caliber and your barrel length. The 375 Raptor suppressor guide covers the choice in detail.
FDE Metallic Cerakote Finish
This CM7S is finished in FDE Metallic Cerakote with a Coyote grip, cheek riser, and forend grip covers. Mechanical specifications match the Black Tungsten Cerakote and Cobalt Kinetics Green Cerakote variations.
375 Raptor Rifle Specifications
- Manufacturer: Chattahoochee Munitions
- Platform: CM7S bolt action
- Chambering: 375 Raptor (designed by Arne Brennan)
- Configuration: Rifle
- Barrel: 16-inch Mos-Tek 416R stainless steel, 5R rifling
- Twist rate: 1:8
- Barrel finish: E100 Blackout Cerakote
- Muzzle: 11/16×24 threads, shouldered crown
- Barrel mounting: Remage barrel nut, 1-1/16-16 action threads
- Action: Steel, Remington 700 footprint, three locking lugs, 60-degree throw, full PVD coating, about 25 oz
- Bolt: One-piece spiral-fluted, .718-inch body, .308 bolt face, M16-style extractor
- Firing pin: .062-inch
- Optic rail: Pinned 20 MOA Picatinny
- Trigger: TriggerTech Remington 700 Primary, flat or curved, adjustable 1.5-4.0 lb
- Chassis: CM7 billet aluminum, flared magazine well, ambidextrous magazine release, full-length ARCA, M-LOK, dual QD
- Grip: CM Precision Vertical Crossover Grip
- Rear: Telescoping buttpad with adjustable cheek riser
- Finish: FDE Metallic Cerakote with a Coyote grip, cheek riser, and forend grip covers
- Magazine: One 10-round Magpul PMAG 7.62 AC AICS-pattern
- Overall length: 28.25-36.00 inches
- Length of pull: 6.25-14.25 inches
- Weight: 7 lb 4 oz, complete firearm; the listing weight is for shipping
375 Raptor Rifle FAQ
Who makes a 375 Raptor rifle?
Chattahoochee Munitions manufactures complete factory 375 Raptor rifles: CM7S bolt action rifles, SBRs, and pistols in 12.5 and 16-inch lengths, including PLACID OTB and WOOX walnut models, and CM10 semi-automatic rifles and SBRs.
What twist rate does the 16-inch CM7S 375 Raptor use?
A 1:8 twist in a 16-inch Mos-Tek 416R stainless barrel with 5R rifling, which stabilizes both the 400 gr subsonic and 190 gr supersonic bullets.
How fast is 375 Raptor supersonic from a 16-inch barrel?
The Chattahoochee Munitions 190 gr Maker T-REX bolt action load averages 2,450 fps with 2,533 ft-lb at the muzzle.
What suppressor should I use on the CM7S 375 Raptor?
An enclosed suppressor rated for .375 caliber, such as the enclosed PLACID 375, with both subsonic and supersonic ammunition. The barrel has 11/16×24 threads.
Does a 16-inch 375 Raptor need SBR registration?
No. With a 16-inch barrel, the CM7S is a standard rifle. State and local laws still apply.
How much does the 16-inch CM7S 375 Raptor weigh?
The complete firearm weighs 7 lb 4 oz. Any heavier listing weight is the shipping weight.
Who designed the 375 Raptor?
The 375 Raptor was designed by Arne Brennan. Chattahoochee Munitions manufactures 375 Raptor firearms, barrels, magazines, suppressors, and ammunition.
Nolan H. (verified owner) –
Amazing Quality, great machining, no play on any parts of the firearm. Very impressed.