Understanding the 22 ARC Ecosystem

The 22 ARC, or 22 Advanced Rifle Cartridge, brings modern high-ballistic-coefficient .224-caliber projectiles to a cartridge designed around the dimensional requirements of the AR-15 platform. Introduced by Hornady and standardized by SAAMI, the cartridge combines high-velocity, supersonic performance with the ability to operate across both semi-automatic and bolt-action firearm platforms.

At Chattahoochee Munitions, 22 ARC is not limited to a single rifle configuration. Flight Deck 22 is an integrated product family manufactured around two distinct CM platforms: the semi-automatic CM15 and the bolt-action CM7S. Complete firearms are supported by a CM15 upper, CM7S barreled actions, and platform-specific magazines, giving customers multiple ways to enter the cartridge ecosystem.

Two Platforms for 22 ARC

The CM15 and CM7S share a chambering, but they approach it through fundamentally different operating systems. The CM15 places 22 ARC in a gas-operated AR-15 platform, while the CM7S provides a manually operated bolt-action alternative.

That distinction allows customers to choose a platform around how they intend to use the firearm rather than treating every 22 ARC configuration as interchangeable. CM15 rifles provide semi-automatic operation and familiar AR-15 architecture. The CM7S eliminates the semi-automatic gas and buffer systems and provides a purpose-built bolt-action platform.

For a more detailed comparison of the two platforms, barrel-length considerations, suppression, and applications, visit the 22 ARC Rifle Guide.

CM15 Semi-Automatic Platform

The CM15 family provides the semi-automatic side of Flight Deck 22. Complete CM15 rifles are available with 16-inch, 18-inch, and 20-inch barrels, giving customers several configurations within the same AR-15-based platform.

CM approaches the CM15 as a complete operating system. The gas system, reciprocating mass, ammunition, and suppressor all influence how a semi-automatic firearm operates. CM15 products incorporate a Superlative Arms adjustable gas block and an ODIN Works adjustable heavy buffer, providing adjustment on both sides of the operating system.

Complete CM15 rifles also use the Breek Arms WARHAMMER Mod2 ambidextrous charging handle. For customers who already have an appropriate AR-15 lower, Flight Deck 22 also includes a standalone 16-inch CM15 upper with selectable configuration options.

CM7S Bolt-Action Platform

The CM7S takes 22 ARC in a different direction. Its manually operated bolt action eliminates the gas block, gas tube, and buffer system required to cycle a semi-automatic firearm.

Complete CM7S firearms are offered as 18-inch rifles and compact 12.5-inch configurations selectable as a pistol or Short Barreled Rifle (SBR). This gives Flight Deck 22 a conventional bolt-action rifle as well as a compact manually operated platform.

For customers who prefer to build around their own stock or chassis configuration, CM also offers 18-inch and 12.5-inch CM7S barreled actions. Complete CM7S firearms use the TriggerTech R700 Primary trigger.

Suppressing 22 ARC

Flight Deck 22 is assembled around the supersonic performance of 22 ARC. A suppressor can substantially change muzzle blast, but it does not eliminate the ballistic crack produced by a projectile traveling faster than the speed of sound. Suppressor selection should therefore account for both the cartridge and the operating system of the host firearm.

For the semi-automatic CM15, Chattahoochee Munitions favors a flow-through suppressor. A flow-oriented design can help limit additional backpressure in the gas-operated system. Combined with the adjustable gas block and adjustable heavy buffer, the CM15 provides multiple tuning points for suppressed operation.

For the bolt-action CM7S, CM favors a conventional enclosed suppressor. Because the action is manually operated, suppressor backpressure does not have to be balanced against a gas system responsible for cycling the firearm. This makes the CM7S and CM15 distinctly different suppressor hosts even though both are chambered in the same cartridge.

More Than Complete Firearms

Flight Deck 22 extends beyond complete rifles. The 22 ARC ecosystem includes a configurable 16-inch CM15 upper, 12.5-inch and 18-inch CM7S barreled actions, and dedicated magazine solutions for both platforms.

The CM15 and CM7S use different magazine architectures. Semi-automatic CM15 firearms use the CM15 22 ARC magazine, while the bolt-action platform uses the CM7S 22 ARC magazine. Providing the appropriate supporting components is part of CM’s approach to offering a complete caliber ecosystem rather than an isolated firearm.

Choosing Your Flight Deck 22 Platform

Choosing between the CM15 and CM7S begins with the operating system. The CM15 provides semi-automatic AR-15 operation with multiple rifle configurations and a standalone upper option. The CM7S provides a manually operated bolt-action platform in both conventional rifle and compact pistol/SBR configurations, along with barreled actions for custom builds.

Neither platform is intended to replace the other. Together they allow 22 ARC customers to choose the firearm architecture that best fits their intended use while remaining within the same Flight Deck 22 product family.

If you are comparing platforms, barrel lengths, suppression strategies, or potential applications before choosing a firearm, continue to our complete 22 ARC Rifle Guide.

22 ARC Frequently Asked Questions

What is 22 ARC?

The 22 Advanced Rifle Cartridge is a SAAMI-standardized centerfire rifle cartridge introduced by Hornady. It is designed around modern .224-caliber projectiles while fitting within the dimensional constraints of the AR-15 platform. The cartridge can also be used in bolt-action firearms.

Does Chattahoochee Munitions offer both semi-automatic and bolt-action 22 ARC firearms?

Yes. The CM15 is CM’s semi-automatic AR-15 platform, while the CM7S is the company’s bolt-action platform. Flight Deck 22 includes complete firearms based on both systems.

Does CM offer a compact 22 ARC?

Yes. The CM7S is available with a 12.5-inch barrel and can be selected as either a pistol or SBR configuration. CM also offers a 12.5-inch CM7S barreled action.

Can I buy a 22 ARC upper instead of a complete rifle?

Yes. Flight Deck 22 includes a 16-inch CM15 upper. Customers can select the color and muzzle device and choose whether the upper is configured with or without a bolt carrier group and charging handle.

What type of suppressor does CM recommend for 22 ARC?

CM favors a flow-through suppressor for the semi-automatic CM15 and a conventional enclosed suppressor for the bolt-action CM7S. The difference reflects the operating systems of the two firearm platforms. Both remain supersonic applications, so suppression does not eliminate the projectile’s ballistic crack.

Do the CM15 and CM7S use the same magazine?

No. The two platforms use different magazine architectures. Chattahoochee Munitions offers a dedicated magazine solution for the CM15 semi-automatic platform and a separate magazine for the CM7S bolt-action platform.

22 ARC // Cleared for Launch

Flight Deck 22 brings together complete CM15 and CM7S firearms, a configurable upper, barreled actions, magazines, and supporting technical information around a single cartridge family. Whether the objective is a semi-automatic AR-15, a conventional bolt-action rifle, or a compact pistol/SBR configuration, the Flight Deck provides a purpose-driven path into 22 ARC.

For additional technical and configuration guidance, read the 22 ARC Rifle Guide.