CM7S 375 Raptor Suppressed Rifle with PLACID OTB
The CM7S 375 Raptor Suppressed Rifle pairs a compact 12.5-inch 375 Raptor bolt-action platform with the purpose-built PLACID OTB titanium suppression system. Instead of placing the entire suppressor forward of the muzzle, PLACID OTB uses substantial over-the-barrel suppression volume while controlling the amount of additional length at the muzzle.
Finished in FDE Metallic with Coyote furniture, this configuration is designed around suppressed hunting and field use. The combination of a short, fast-twist barrel, adjustable billet chassis and PLACID OTB architecture creates a compact 375 Raptor Suppressed Rifle configured around the capabilities of 375 Raptor.
Purpose-Built PLACID OTB Suppression
PLACID OTB is more than a conventional suppressor installed on the end of a 375 Raptor Suppressed Rifle. The system was designed and developed by Chattahoochee Munitions around the CM7S platform, allowing the rifle to incorporate substantial suppression volume around its full-length barrel.
A 12.5-inch titanium reflex tube extends rearward over the barrel while a 6-inch 3D-printed titanium baffle stack occupies the forward section of the system. Unlike a conventional suppressor positioned entirely beyond the muzzle, this architecture allows PLACID OTB to integrate closely with the rifle while retaining a full-length, unported 12.5-inch barrel.
PLACID OTB is constructed entirely from titanium and measures 18.25 inches long and 1.5 inches in diameter, with a complete system weight of 23.6 ounces. Its mounting, alignment and internal architecture are proprietary to the Chattahoochee Munitions PLACID OTB system.
For a complete suppressed system, pair the CM7S with our 375 Raptor 400gr Maker REX Subsonic Ammunition – Bolt Action, developed specifically for bolt-action operation and suppressed use.
12.5-Inch Fast-Twist 375 Raptor Barrel
A compact suppressed rifle requires a barrel configured for the intended cartridge and projectile range. This 375 Raptor Suppressed Rifle uses a full-length, unported 12.5-inch barrel manufactured for Chattahoochee Munitions by Mos-Tek.
The barrel’s 1:7 twist rate provides the fast rotational speed needed for the heavy projectiles commonly used in 375 Raptor applications. Manufactured from 416R stainless steel with 5R rifling and protected by E100 Blackout Cerakote, the barrel is configured specifically for this compact 375 Raptor Suppressed Rifle.
- 12.5-inch barrel length
- 416R stainless steel
- 5R rifling
- 1:7 twist rate
- Shouldered crown
- Full-length, unported barrel
- E100 Blackout Cerakote
Full PVD-Coated CM7S Action
The foundation of the rifle is the Chattahoochee Munitions CM7S steel action. Its Remington 700-style footprint provides broad compatibility while the action itself incorporates features developed for a compact, reliable hunting and precision platform.
A three-lug design produces a short 60-degree bolt throw. The one-piece bolt uses a .718-inch body, M16-style extractor and spiral fluting. Wire EDM-cut raceways provide uniform tolerances and smooth cycling, while full PVD coating provides corrosion protection and reduces friction between operating surfaces.
- Remington 700-style footprint
- Full PVD-coated steel construction
- Three-lug bolt
- 60-degree bolt throw
- One-piece .718-inch bolt body
- M16-style extractor
- Wire EDM-cut raceways
- Integrated recoil lug
- Pinned 20 MOA Picatinny rail
- Large ejection port
- Lightweight action body cut-out
- .062-inch firing pin for compatibility with SRP brass
- Tool-less fire control removal
- Side bolt-stop release
- Oversize bolt knob
- Spiral-fluted bolt
- 1-1/16″-16 barrel thread pitch
- 25 oz action weight
TriggerTech Primary Trigger
Each 375 Raptor Suppressed Rifle includes a TriggerTech Remington 700 Primary trigger with the choice of a flat or curved trigger. Pull weight is externally adjustable from approximately 1.5 to 4.0 pounds in 1-ounce increments.
TriggerTech’s Frictionless Release Technology provides a clean, predictable break with minimal overtravel. Hardened 440C stainless internal components and external CLKR adjustment provide a practical trigger system that can be configured to the shooter’s preference.
FDE Metallic Billet Chassis
This version of the 375 Raptor Suppressed Rifle uses the FDE Metallic finish with Coyote furniture. The chassis is machined from a single block of billet aluminum and provides the rigidity and modularity required for a compact suppressed hunting rifle.
- Single-piece billet aluminum construction
- Flared AICS-compatible magazine well
- Ambidextrous magazine release
- Full bottom ARCA rail
- M-LOK compatibility
- Dual integrated QD sling sockets
- Large trigger guard for gloved operation
- Modular single-bolt stock adapter system
- Telescoping stock
- Adjustable cheek riser
- CM Precision Vertical Crossover Grip developed in collaboration with MK Machining
AICS Magazine System
The CM7S uses AICS-pattern magazines and includes one 10-round Magpul PMAG 7.62 AC AICS magazine. A flared magazine well helps guide the magazine into position, while the ambidextrous magazine release provides access from either side of the chassis.
Compact Dimensions with Reflex Suppression
A major advantage of the PLACID OTB architecture is where much of its suppressor volume is located. The over-the-barrel design utilizes space surrounding the barrel rather than placing the entire suppressor system beyond the muzzle. The result is a 375 Raptor Suppressed Rifle measuring 31.00 to 38.625 inches overall depending on stock adjustment.
Complete firearm weight is 7 lb 13.6 oz, including the 23.6-ounce PLACID OTB system. Length of pull adjusts from 6.0 to 13.5 inches, allowing the rifle to be configured for shooter preference, equipment and field conditions.
Built Around 375 Raptor
This 375 Raptor Suppressed Rifle brings together the compact CM7S action, a fast-twist 12.5-inch barrel and the PLACID OTB suppression system configured for the 375 Raptor application. Shooters interested in learning more about the cartridge can visit the Raptor Paddock and browse available 375 Raptor ammunition from Chattahoochee Munitions.
CM7S 375 Raptor Suppressed Rifle Specifications
- Caliber: 375 Raptor
- Barrel Length: 12.5″
- Twist Rate: 1:7
- Barrel: Mos-Tek 416R Stainless, 5R Rifling
- Barrel Finish: E100 Blackout Cerakote
- Suppression System: PLACID OTB
- Suppressor Construction: Titanium
- Reflex Tube: 12.5″ Titanium
- Baffle Stack: 6″ 3D-Printed Titanium
- PLACID OTB Length: 18.25″
- PLACID OTB Diameter: 1.5″
- PLACID OTB Weight: 23.6 oz
- Action: CM7S, Full PVD-Coated Steel
- Recoil Lug: Integrated
- Rail: Pinned 20 MOA Picatinny
- Trigger: TriggerTech Remington 700 Primary, Flat or Curved
- Trigger Adjustment: 1.5–4.0 lb
- Chassis: CM7 Billet Aluminum
- Color: FDE Metallic
- Furniture: Coyote
- Magazine: 1x 10-Round Magpul PMAG AICS 7.62
- Complete Firearm Weight: 7 lb 13.6 oz
- Overall Length: 31.00″–38.625″
- Length of Pull: 6.0″–13.5″
The weight and dimensions listed above are actual firearm specifications. Weight and dimensions displayed elsewhere for shipping purposes are packaging and shipping measurements.
Frequently Asked Questions
What makes PLACID OTB different on this 375 Raptor Suppressed Rifle?
PLACID OTB was designed and developed by Chattahoochee Munitions around the CM7S platform. Its over-the-barrel architecture places substantial suppressor volume around the full-length, unported 12.5-inch barrel rather than positioning the entire suppressor assembly beyond the muzzle.
How much does the 375 Raptor Suppressed Rifle weigh?
The complete firearm weighs 7 lb 13.6 oz with the PLACID OTB installed.
What is the overall length?
Overall length ranges from 31.00 to 38.625 inches depending on stock adjustment. Length of pull adjusts from 6.0 to 13.5 inches.
What barrel is used?
The 375 Raptor Suppressed Rifle uses a full-length, unported 12.5-inch Mos-Tek 416R stainless steel barrel with 5R rifling and a fast 1:7 twist rate.
What trigger is included?
A TriggerTech Remington 700 Primary trigger is included with the choice of flat or curved configuration. Pull weight is externally adjustable from approximately 1.5 to 4.0 pounds.
Where can I learn more about PLACID OTB?
Additional information about the over-the-barrel suppression system is available on the PLACID OTB page.
Limited Lifetime Warranty
The 375 Raptor Suppressed Rifle is backed by the Chattahoochee Munitions Limited Lifetime Warranty for the original purchaser, subject to applicable warranty terms and functional limitations.
Built by Chattahoochee Munitions, this 375 Raptor Suppressed Rifle combines a compact CM7S bolt-action platform, fast-twist 375 Raptor barrel, adjustable billet chassis and purpose-built PLACID OTB suppression system.
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