CM15 22 ARC 16″ Rifle AR15 Black Tungsten

This is a 16″ 22 ARC rifle from Chattahoochee Munitions. This will be one of the sturdiest-feeling weapons, as everything is designed in tight tolerances. All of our rifles are equipped with HIPERFIRE (High Performance Firearms) Triggers; all are 2.5lb single-stage Reflex (curved) or Competition (straight with shoe); Competition is pictured. Odin Adjustable Buffers and Superlative Arms Adjustable Gas Blocks are standard on our rifles.

CM15 Upper and Lower Receiver:

• Mil-spec dimensions to mate with any AR15 Components
• CNC machined from 7075-T6 billet aluminum
• Pictogram’ style Fire/Safe engravings on both sides
• Light-Weight FCG Faces and Mag-well
• Integral trigger guard for added overall strength
• Machined (not broached) Mag-well with wide flare
• Lightweight Lower Receiver Weight = 8.0 oz
• Black Tungsten Cerakote

Lower Parts:

• CM Ambi Safety
• CM Ambi Mag Release
• CM15 Pivot and Takedown Pins
• HIPERFIRE 2.5lb single stage Reflex (curved) or Competition (straight with shoe) Trigger and pins
• CM15 Ambi Bolt Release
• B5 Systems Black Grip

Receiver Extension:
B5 Systems Bravo Stock – Black
CM Milspec Buffer Tube – Black Tungsten Cerakote
QD Endplate
Odin Adjustable Buffer AR15

Upper:
CM15 Low Mass Bolt Carrier Group:

• 9310 steel
• HPT Bolt (High Pressure Tested/ Proof)
• MPI Bolt (Magnetic Particle Inspected)
• Nitride-coated bolt
• Nitride-coated Carrier
• Nitride-coated Gas Key
• Gas Key Hardened to USGI Specifications
• Grade 8 Hardened Fasteners Key Staked Per Mil-Spec
• Tool Steel Extractor
• Lightening Cuts

CM15 Ambi Charging Handle – 7075 Aluminum
CM15 Dust Cover and Forward Assist
CM Rifle Length Gas Tube – Melonite
Superlative Arms .750 Adjustable Gas Block – Melonite
CM15 LWS 15″ Mlok Handguard – Black Tungsten Cerakote

• 6061 Aluminum
• Dual Taper Attachment System
• Steel Barrel Nut
• QD Attachment at 3 and 9 o’clock positions
• Mlok attachment on the sides and bottom
• Full Picatinny Top Rail

B5 Systems Black Rail Covers
Pictured with Dead Air Keymo Brake (suppressor host); however, can substitute with A2 Birdcage, Yankee Hill Brake, Silencerco ASR, Rugged 3 Port Brake
Reach out for a price adjustment on other muzzle devices if desired

Barrel:
CM15 22 ARC 16″ Fluted Barrel

• 416R Stainless
• Black Cerakote
• 1:7 Twist
• Shouldered crown
• 1/2×28 thread pitch
• .750 gas journal
• Rifle Length System

Magazine:
1x10rd DuraMag Black

OAL: 33.50-36.75″
OAW: 6lb/12oz with unloaded magazine and no accessories (Weight and dimension on other tab are for shipping purposes)
LOP: 11″-14.25″

Warranty – Limited Lifetime
Limited to the original purchaser
Limited regarding functional performance
Limited regarding the original configuration

Why Choose the 22 ARC Cartridge?

The 22 ARC isn’t just a modification of existing cartridges; it’s a complete reimagining of what a .224 caliber projectile can achieve out of an AR-15 style action. Designed utilizing the design methodologies of the highly successful 6mm ARC, the 22 ARC utilizes heavy, aerodynamic, high Ballistic Coefficient (BC) bullets seated deep within the casing.

This creates a scenario where a standard-frame 22 arc ar15 rifle matches or exceeds the external ballistics of legendary bolt-action cartridges like the 22-250 Remington, while maintaining soft-recoiling semi-automatic functionality. It easily maintains supersonic velocities well past 1,000 yards, shrugging off crosswinds that drift traditional 5.56 NATO or 223 Remington rounds off-target.

Premium Engineering: The Chattahoochee Munitions Difference

Building a high-end 22 ARC rifle requires an obsessive focus on harmony between components. At Chattahoochee Munitions, we systematically eliminate the common pain points found in mass-produced platforms.

1. Billet Aluminum Receivers with Match Tolerances

Every CM15 upper and lower receiver set is CNC machined from a solid block of 7075-T6 billet aluminum. Unlike standard forged sets that can leave microscopic wobble between the upper and lower halves, our receivers are cut to incredibly tight tolerances. This rigidity minimizes harmonic vibration during strings of rapid fire, creating an incredibly solid platform. We finish the receivers with a premium Black Tungsten Cerakote for maximum surface hardness and corrosion resistance.

2. Match-Grade 416R Stainless Steel Barrel

The heart of this weapon is the CM15 16″ fluted barrel. Machined from 416R stainless steel—the gold standard for precision rifle barrels—it features a 1:7 twist rate. This fast twist is absolutely vital for stabilizing the heavy 75-grain to 88-grain projectiles that make the 22 ARC caliber legendary. The deep fluting serves a dual purpose: it reduces overall weight to keep the gun nimble, and it increases surface area to dissipate heat quickly, preserving your throat life and maintaining tight groups.

3. Digitally Tuned Gas and Recoil Management

Heavy projectiles and high pressures mean that gas management is critical. The CM15 comes standard with a Superlative Arms Adjustable Gas Block paired with a true rifle-length gas system. By tuning the gas flow directly at the block, you bleed off excess pressure rather than forcing it back into the action.

We pair this gas system with an Odin Adjustable Buffer and our custom CM15 Low Mass Bolt Carrier Group. This ultra-lightweight combination significantly drops the reciprocating mass inside the buffer tube. The result? A cyclic impulse so smoothly managed that you can literally watch your own bullet impacts through your high-magnification optic.

+--------------------------------------------------------+
|               CM15 SYSTEM TUNING ADVANTAGE             |
+--------------------------------------------------------+
| Superlative Arms Adjustable Gas Block (Pressure Control)  |
|                         ↓                              |
| CM15 Low Mass Bolt Carrier Group (Reduced Reciprocating Weight)|
|                         ↓                              |
| Odin Adjustable Buffer System (Perfect Cycling Balance)|
+--------------------------------------------------------+
| RESULT: Ultra-Flat Shooting, Zero Muzzle Rise, Clear Sight Picture |
+--------------------------------------------------------+

4. Elite Trigger Systems

A precision rifle is only as good as its trigger. That’s why we standard-equip this firearm with premium HIPERFIRE triggers. Tuned to a crisp, clean 2.5 lb pull weight, these single-stage and two-stage options offer virtually zero-creep breaks with an incredibly fast reset. Choose the curved Reflex trigger for classic tactical indexing, the straight Competition shoe for precision target leverage, or the X2S Mod3 two-stage trigger for long-range staging.

Customization: Choose Your Muzzle Device

We recognize that a precision rifle often serves as a suppressor host. The CM15 22 ARC comes standard with 1/2×28 muzzle threads, allowing you to customize your interface directly from our factory dropdown menu. Options include:

• Thread Protector Only: For an ultra-clean, minimalist look.

• Dead Air Keymo Brake / Flash Hider: The ultimate quick-detach mounting solution for Dead Air suppressors.

• SilencerCo ASR Brake: A rock-solid, industry-standard mounting interface.

• Rugged 3-Port Brake: Drastically reduces what little recoil remains while providing a mounting surface for Rugged suppressors.

• Yankee Hill Brake: Proven, rugged performance for YHM mounting systems.

Frequently Asked Questions (FAQ)

What is the maximum effective range of a 16″ 22 ARC rifle?

While maximum range depends heavily on your choice of optic, environmental factors, and load selection, a high-quality 16″ 22 ARC rifle is capable of maintaining supersonic velocities and match-grade precision out to 1,000 yards. This far outperforms standard 5.56/.223 platforms, which typically lose stability around 600 to 700 yards.

Does this rifle use standard AR-15 magazines?

The 22 ARC uses a modified case geometry based on the 6.5 Grendel/6mm ARC family. While it fits perfectly inside a standard AR-15 receiver set, it requires caliber-specific magazines for 100% reliable feeding. Every CM15 rifle ships with a premium 10-round DuraMag designed specifically for this cartridge family.

Can I shoot standard 223 Remington or 5.56 NATO ammo out of a 22 ARC barrel?

No. The 22 ARC has a completely different case dimension, shoulder angle, and base diameter than 223 Rem or 5.56 NATO. Attempting to chamber or fire incorrect ammunition is highly dangerous and will damage your firearm. Always use factory-loaded 22 ARC ammunition.

What maintenance is required for the low mass BCG and adjustable gas system?

Because our Low Mass BCG is fully Nitride-coated, carbon fouling does not easily stick to its surfaces, making cleanup straightforward. We recommend regularly wiping down the carrier, verifying the gas key fasteners remain secure, and checking the adjustment screw on your Superlative Arms gas block every few hundred rounds to ensure carbon buildup doesn’t seize the adjustment mechanism.

Where can I find additional uppers or parts for my build?

If you want to swap calibers or are looking for standalone parts, check out our dedicated CM15 Uppers Category to browse matching components. For those planning a completely custom bolt-action build alongside their semi-auto, take a look at our precision CM7S Bolt Action line.

Purchase Information & Legal Notice

Chattahoochee Munitions is a registered Type 07 FFL Manufacturer and Class 2 SOT located in Roswell, Georgia.

Please note that this is a regulated firearm. All federal, state, and local laws apply. This product must ship directly to a licensed Federal Firearms Licensee (FFL) dealer in your area for local transfer. To understand the step-by-step process of purchasing your rifle online, please read our Official Firearms Buying Guide.

Current custom production lead times average approximately two weeks from order placement to shipment. Bring unparalleled precision to your shooting catalog today with the Chattahoochee Munitions CM15.-=

22 ARC AR15 Rifle: Ultimate Precision Engineered for Elite Performance

Unlock ultimate long-range precision with the Chattahoochee Munitions 16″ 22 ARC AR15 rifle. Engineered with tight billet tolerances, low mass BCG, and a 1:7 twist barrel.

Product SKU: CM152216BTUNG

Product Brand: CM

Product Currency: USD

Product Price: 1785

Product In-Stock: InStock

Editor's Rating:
5