CM7S 6mm ARC Bolt Action Rifle — 18-Inch Black Tungsten
The 6mm ARC bolt action rifle from Chattahoochee Munitions brings together the CM7S action, an 18-inch Mos-Tek barrel and CM7 billet-aluminum chassis. This complete firearm is part of Overwatch 6, CM’s supersonic precision and predator-hunting family.
The Black Tungsten configuration includes a TriggerTech Remington 700 Primary trigger, CM Precision Vertical Crossover Grip and one 10-round AICS-pattern magazine. Complete firearm weight is 7 lb 6 oz, with adjustable overall length and length of pull.
CM7S Action — Full PVD Coating
The CM7S action is designed to Chattahoochee Munitions specifications and uses a Remington 700 footprint. Three locking lugs provide a 60-degree bolt throw. The action incorporates an integrated recoil lug and a pinned 20 MOA Picatinny rail.
The one-piece bolt has a .718-inch body diameter, spiral fluting, an M16-style extractor and an oversized bolt knob. Wire EDM raceways, a side bolt-stop release and tool-less fire-control removal complete the action’s principal features.
The action uses a .062-inch firing pin to accommodate small-rifle-primer brass. Full PVD coating provides its protective surface finish.
18-Inch Mos-Tek Barrel
The barrel is manufactured in collaboration with Mos-Tek from 416R stainless steel with 5R rifling. It uses a 1:7 twist, a shouldered crown and 5/8×24 muzzle threads.
The barrel mounts with a Remage barrel nut and has an E100 Blackout Cerakote exterior finish. Its 18-inch length provides the full-length rifle configuration within the CM7S 6mm ARC lineup.
TriggerTech Remington 700 Primary Trigger
Choose a flat or curved TriggerTech Remington 700 Primary trigger. Pull weight is externally adjustable from 1.5 to 4.0 lb.
The trigger incorporates TriggerTech’s Frictionless Release Technology and CLKR adjustment system. Product photographs may show older flat triggers fitted with trigger shoes; current flat triggers do not include those shoes.
CM7 Billet-Aluminum Chassis
The CM7 chassis is machined from a single block of billet aluminum and finished in Black Tungsten Cerakote. Its flared magazine well accepts compatible AICS-pattern magazines, with an ambidextrous magazine release.
A large trigger guard provides clearance for gloved operation. The chassis also incorporates M-LOK compatibility, dual integrated QD sling sockets and a full bottom ARCA rail for compatible support accessories.
The modular stock-adapter system uses a single-bolt interface for compatible stock options. The grip interface accepts compatible AR15 grips without an integrated dovetail.
Stock, Grip and Fit
This configuration uses black and Black Tungsten stock components alongside the CM Precision Vertical Crossover Grip, developed in collaboration with MK Machining.
Overall length adjusts from 31.50 to 38.00 inches, while length of pull adjusts from 6.0 to 13.5 inches. These adjustments allow the firearm’s fit to accommodate shooter preference and equipment.
Included 6mm ARC AICS Magazine
One 10-round 6mm ARC AICS-pattern magazine is included. The bolt-action CM7S uses a different magazine architecture from the semi-automatic CM15.
For additional magazines, see the MDT 6mm ARC AICS magazine. Use the magazine intended for the CM7S platform.
Suppressed Use
Chattahoochee Munitions prefers an enclosed, conventional baffle suppressor for the CM7S, including this 6mm ARC Bolt Action Rifle. This manually operated platform does not have the gas-operated cycling system found in the CM15.
The 5/8×24 muzzle threads identify the mounting interface. Confirm the suppressor’s cartridge approval, bore suitability, barrel-length rating and mounting compatibility. Supersonic ammunition continues to produce a sonic crack when suppressed.
Our 6mm ARC suppressor guide explains CM’s preferences by platform.
6mm ARC Bolt Action Rifle Specifications
- Manufacturer: Chattahoochee Munitions
- Platform: CM7S bolt-action
- Caliber: 6mm ARC
- Barrel length: 18 inches
- Barrel manufacturer: Mos-Tek
- Barrel material: 416R stainless steel
- Rifling: 5R
- Twist rate: 1:7
- Crown: Shouldered
- Muzzle threads: 5/8×24
- Barrel mounting: Remage barrel nut
- Barrel finish: E100 Blackout Cerakote
- Action footprint: Remington 700
- Locking lugs: Three
- Bolt throw: 60 degrees
- Extractor: M16-style
- Bolt: One-piece, spiral-fluted
- Bolt-body diameter: .718 inch
- Recoil lug: Integrated
- Optics rail: Pinned 20 MOA Picatinny
- Firing-pin diameter: .062 inch
- Raceways: Wire EDM
- Bolt stop: Side release
- Bolt knob: Oversized
- Fire-control removal: Tool-less
- Action barrel threads: 1-1/16″–16
- Action finish: Full PVD coating
- Trigger: TriggerTech Remington 700 Primary, flat or curved
- Trigger adjustment: 1.5–4.0 lb
- Chassis: CM7 billet aluminum
- Chassis finish: Black Tungsten Cerakote
- Stock finish: Black and Black Tungsten Cerakote
- Grip: CM Precision Vertical Crossover Grip
- Magazine: One 10-round 6mm ARC AICS-pattern magazine
- Complete firearm weight: 7 lb 6 oz
- Overall length: 31.50–38.00 inches
- Length of pull: 6.0–13.5 inches
Measurement clarification: These are complete firearm measurements. Weight and dimensions shown in the shipping information tab are for shipping purposes.
Limited Lifetime Warranty
The 6mm ARC Bolt Action Rifle carries Chattahoochee Munitions’ limited lifetime warranty for the original purchaser, subject to the published warranty terms and exclusions.
Explore Overwatch 6
Compare this 6mm ARC bolt action rifle with other CM7S configurations and the CM15 semi-automatic family at Overwatch 6.
For cartridge background and platform comparisons, read our 6mm ARC rifle guide.
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