CM7S 6MM ARC Barreled Action 18″

CM7S 6MM ARC Barreled Action 18″

 

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 several 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 18″ Barrel – E100 Blackout Cerakote

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

Weight: 65.31oz or 4.08lbs (weight and dimensions on other tab are for shipping purposes)

ARC Barreled Action 18″: The Definitive Platform for Long-Range Precision

When performance at distance is the primary objective, the ARC barreled action featuring an 18-inch barrel stands as the gold standard for precision shooters. Designed to harness the full ballistic potential of the 6mm Advanced Rifle Cartridge, this barreled action offers the perfect synthesis of velocity, harmonics, and maneuverability.

Whether you are a competitive shooter looking for a flat-shooting edge or a hunter requiring ethical knockdown power at extended ranges, the 18″ ARC barreled action is the heart of a world-class rifle system.

Why the 18-Inch ARC Barreled Action is the Professional Choice

The 6mm ARC was engineered to deliver low-drag performance that rivals larger cartridges while maintaining a compact footprint. While shorter barrels offer portability, the 18-inch ARC barreled action is widely considered the “sweet spot” for maximizing muzzle velocity without sacrificing the benefits of a handy, short-action platform.

Maximum Velocity and Energy

The 18-inch barrel allows for a more complete powder burn, providing the extra FPS (feet per second) needed to keep high-BC bullets supersonic for longer distances. This translates to less wind drift and a flatter trajectory, giving you more “room for error” when engaging targets at 800 yards and beyond.

Technical Specifications & Engineering Excellence

Our 18″ ARC barreled action is manufactured to exacting tolerances, ensuring that every component works in harmony to produce sub-MOA results.

• Caliber: 6mm ARC (Optimized for precision)

• Barrel Length: 18 Inches (Match Grade)

• Muzzle Thread: 5/8×24 (Ready for suppressors and brakes)

• Twist Rate: 1:7 or 1:7.5 (Specifically tuned for 103gr to 108gr projectiles)

• Action: Premium Bolt Action (Short Action footprint)

• Gas System: N/A (Bolt action efficiency for maximum consistency)

A Foundation for Stability

By choosing a bolt-action ARC barreled action, you eliminate the reciprocating mass found in semi-automatic platforms. This results in a more stable shooting experience, allowing you to track your impact through the scope and make precise adjustments in real-time.

The Versatility of the 18″ Platform

While 12.5″ barrels excel in CQB and backpack configurations, the 18″ version is the true multi-purpose workhorse of the 6mm ARC family.

1. DMR-Style Performance: In a bolt-action format, this length delivers Designated Marksman Rifle-level accuracy, making it ideal for precision tactical matches.

2. Harmonic Consistency: The 18-inch profile is engineered to minimize barrel whip. This increased stiffness ensures that your cold-bore shot and your tenth shot land in the same place.

3. Perfect Balance: When paired with a quality chassis or stock, the center of gravity sits perfectly between the hands, allowing for steady shots from tripods or barricades.

Application: From PRS to Open Plains

The ARC barreled action is more than just a component; it is an investment in your shooting capability.

Precision Rifle Series (PRS) and NRL Hunter

For shooters entering the world of precision rifle competitions, the 6mm ARC offers a low-recoil alternative to the 6.5 Creedmoor. The 18-inch barrel provides enough velocity to stay competitive on the clock while keeping the rifle light enough to move quickly between stages.

Long-Range Hunting

For varmint and medium-game hunting, the 18″ 6mm ARC is a laser. It provides the reach necessary for open-country hunting where a 300-yard shot is the minimum requirement. Its ability to push 103gr ELD-X bullets at high speeds ensures ethical performance on deer-sized game.

The Chattahoochee Munitions Advantage

We aren’t just retailers; we are custom manufacturers based in Roswell, GA. Our team understands that a high-end ARC barreled action requires more than just assembly—it requires an obsession with detail.

We serve a diverse clientele, from local enthusiasts to military and law enforcement professionals who demand equipment that never fails. When you purchase from us, you are getting a platform tested for reliability and peak performance. We also offer specialized solutions for other niche calibers like the 338 ARC for those seeking heavy-hitting subsonic performance.

Frequently Asked Questions (FAQ)

1. What kind of accuracy can I expect from the 18″ ARC barreled action?

With match-grade factory ammunition and a proper optic, our barreled actions are capable of sub-MOA performance. Many shooters report consistent 0.5 to 0.75 MOA groups during testing.

2. Is 18 inches too long for suppressed use?

Not at all. While an 18″ barrel plus a suppressor creates a longer profile than a 12.5″ setup, it remains highly manageable. The extra length actually helps with balance when using heavier precision suppressors.

3. Which magazines should I use with this barreled action?

This action is typically compatible with AICS-pattern magazines specifically designed for the 6mm ARC or 6.5 Grendel family of cartridges.

4. Can I change the stock later?

Yes. One of the primary benefits of buying an ARC barreled action is the ability to drop it into any compatible Remington 700 footprint chassis (or whichever specific footprint the action is built on). This allows your rifle to evolve with your needs.

5. Why choose 6mm ARC over .223 Remington?

The 6mm ARC offers significantly better wind resistance and energy retention at distance. While .223 is excellent for short-range training, the ARC platform extends your effective range by hundreds of yards.

Elevate Your Shooting Standards

The journey to the perfect rifle begins with the right core. The ARC barreled action 18″ provides the velocity, accuracy, and reliability required for elite-level shooting. Don’t settle for “off-the-shelf” compromises when you can build on a professional foundation.

[Explore our full range of Barreled Actions] and take the first step toward owning the most accurate rifle in your collection. Experience the precision of Chattahoochee Munitions—where engineering meets the art of the long shot.