CM7S 6MM ARC Barreled Action 12.5″

CM7S 6MM ARC Barreled Action 12.5″

 

CM7S Action – Full PVD Coated

The CM7S action is designed for hunting use. It can also be used for competition. It is a steel action with a Remington 700-style footprint. The CM7S has a number of features that factory actions lack.

• Based on the classic Remington 700 footprint with a 3-lug design
• 60-degree throw
• M16 style extractor
• One-piece bolt – 0.718″ Bolt Body DIA.
• Integrated recoil lug
• Wire EDM raceways for more uniform tolerances and smoother cycling
• Pinned 20 MOA Picatinny Rail
• Large ejection port and cut-out for a light-weight action body- 25oz total weight
• .062” firing pin to accommodate SRP brass
• Dual Pinned .300” recoil lug
• Tool-less fire control removal
• Accepts any Remington 700 style trigger – Trigger Pins Included 
• 1-1/16”-16 thread pitch
• Side bolt-stop release
• Oversized bolt knob
• Spiral fluted bolt
• Full PVD coating for more corrosion protection and smoother operation

CM 6MM ARC 12.5″ Barrel – E100 Blackout Cerakote

• 416R Stainless Steel
• 5R rifling
• 1:7 twist rate
• Shouldered crown
• 5/8×24 muzzle threads

Weight: 57.4oz or 3.59lbs (weight and dimensions on other tab are for shipping purposes)

6mm ARC Barreled Action 12.5″: The Ultimate Compact Precision Platform

When it comes to balancing long-range ballistics with a compact footprint, few configurations can rival a 6mm ARC barreled action. Designed for shooters who refuse to compromise on accuracy while maintaining a lightweight profile, the 12.5-inch 6mm ARC barreled action represents the pinnacle of modern short-action engineering.

Whether you are building a dedicated ranch rifle, a tactical bolt-action pistol, or a highly maneuverable Short Barreled Rifle (SBR), this barreled action serves as the heart of a high-performance system.

Why Choose a 6mm ARC Barreled Action?

The 6mm Advanced Rifle Cartridge (ARC) was designed by Hornady to achieve optimal performance out of the AR-15 platform, but it truly shines when paired with a precision bolt action. By utilizing a 6mm ARC barreled action, you eliminate the gas-system variables of a semi-auto, allowing for tighter tolerances, better consistency, and maximum suppressed performance.

Superior Ballistics in a 12.5″ Package

While many shooters assume long-range performance requires long barrels, the efficiency of the 6mm ARC cartridge tells a different story. Even with a 12.5-inch barrel, the 6mm ARC maintains impressive velocities that allow it to outshoot many larger calibers at distance, all while fitting into a much smaller carrying case.

Technical Specifications & Features

Our 12.5″ 6mm ARC barreled action is built using premium components to ensure “out-of-the-box” precision.

• Caliber: 6mm ARC (Advanced Rifle Cartridge)

• Barrel Length: 12.5 Inches

• Action Type: Premium Short Action Bolt Action

• Muzzle Thread: 5/8×24 (Standard for suppressor compatibility)

• Twist Rate: Optimized for heavy, high-BC 6mm bullets

• Finish: High-durability coatings (options like Cobalt Kinetics Green or Cerakote)

The Perfect Foundation for Custom Builds

A barreled action is the most critical component of your rifle. By starting with a 12.5″ 6mm ARC unit, you have the freedom to choose your preferred chassis or stock. Whether you want the classic feel of a WOOX Walnut Stock or a modern folding chassis for backpack carry, this action drops in with ease.

Benefits of the 12.5-Inch Barrel Length

The choice of 12.5 inches is intentional. This length provides the perfect “swing weight” for moving through dense brush or navigating tight tactical environments.

1. Optimized for Suppressors: Adding a silencer to a 12.5-inch barrel results in an overall length similar to a standard unsuppressed rifle. This makes it a top choice for shooters who prioritize hearing protection and recoil reduction.

2. Weight Savings: Every inch of steel counts. Reducing barrel length significantly lowers the center of gravity, making the rifle easier to shoot off-hand.

3. Rigidity: Shorter barrels are inherently stiffer than longer barrels of the same profile. This increased rigidity can lead to improved shot-to-shot consistency and reduced barrel whip.

Performance in the Field: Hunting and Competition

Don’t let the compact size fool you. The 6mm ARC barreled action is a formidable tool for both the predator hunter and the long-range enthusiast.

Predator and Small Game Hunting

For the mobile hunter, a 12.5″ 6mm ARC build is a dream. It offers the flat trajectory needed to take down coyotes at 400+ yards while remaining light enough to carry on a sling all day. Its mild recoil allows for quick follow-up shots and the ability to watch your hits through the optic.

Tactical Bolt Action Competition

In competitions that require movement and shooting from unconventional positions, a compact 6mm ARC rifle excels. The ability to maneuver through barricades without a long barrel snagging on obstacles provides a distinct competitive advantage.

Why Buy from Chattahoochee Munitions?

At Chattahoochee Munitions, we specialize in high-bore and precision-engineered firearms. We understand the technical nuances of calibers like the 6mm ARC and the newer 338 ARC.

Every 6mm ARC barreled action we sell undergoes rigorous quality control. We don’t just assemble parts; we craft precision instruments designed to serve civilian, law enforcement, and military clients with the highest level of reliability.

Frequently Asked Questions (FAQ)

1. Is a 12.5″ barrel long enough for 6mm ARC performance?

Yes. While you do lose some muzzle velocity compared to an 18″ or 20″ barrel, the 6mm ARC is exceptionally efficient. You can still comfortably engage targets at 600–800 yards with a 12.5″ setup.

2. Can I use this for a Pistol build or an SBR?

The 12.5″ barreled action can be used to build a bolt-action pistol (if using a brace or no stock) or a Short Barreled Rifle (SBR), which requires a Form 1 NFA stamp. Always check your local and federal regulations before completing your build.

3. What is the best ammunition for a 6mm ARC barreled action?

We recommend Hornady factory loads, specifically the 108gr ELD-M for precision work and the 103gr ELD-X for hunting applications.

4. What thread pitch is used for the muzzle?

Our 12.5″ 6mm ARC barrels typically feature a 5/8×24 thread pitch, making them compatible with a wide variety of muzzle brakes and suppressors.

5. Does this action fit the standard Remington 700 footprint chassis?

Most of our precision actions are designed to be compatible with industry-standard footprints. Please check the specific product variant or contact us to confirm compatibility with your specific chassis.

Secure Your 6mm ARC Barreled Action Today

Ready to start your next precision project? The 6mm ARC barreled action 12.5″ is the high-performance, compact solution you’ve been looking for. Whether you’re a professional needing a discreet tactical tool or a hobbyist building the ultimate range toy, this barreled action delivers.

[Shop our full selection of Bolt Action platforms here] and experience the difference that precision engineering makes.