CM15 – 338ARC – AR15 Magazine

338 ARC AR15 Magazine – 10-Round DURAMAG Stainless Steel

The 338 ARC AR15 Magazine from Chattahoochee Munitions is a 10-round stainless-steel DURAMAG selected and tested for use with 338 ARC in our CM15 platform. Rather than leaving magazine compatibility to the customer, Chattahoochee Munitions has vetted this magazine as part of the complete CM15 338 ARC system.

Built on an AR-15 pattern, the magazine combines durable 410 stainless-steel construction with DURAMAG feeding and follower technology. It is the magazine configuration supplied with Chattahoochee Munitions CM15 rifles chambered in 338 ARC and is available separately for customers who need additional magazines.

Tested for the CM15 338 ARC

Magazine geometry is an important part of reliable operation in any AR-platform firearm. Chattahoochee Munitions does not simply select a magazine based on external dimensions or assumed cartridge compatibility. We test the magazine with the firearm and cartridge configuration before selecting it for our production rifles.

This 338 ARC AR15 Magazine has been tested and vetted by Chattahoochee Munitions for use with 338 ARC in the CM15. It provides customers with the same magazine configuration used during our own firearm testing and supplied with complete CM15 338 ARC firearms.

410 Stainless-Steel Construction

DURAMAG manufactures the magazine body from 410 stainless steel. The steel construction provides a rigid magazine body designed to maintain its geometry during use, storage, and changing environmental conditions.

The magazine also uses DURAMAG’s T-360™ coating, which is designed to provide performance and product longevity under demanding conditions.

Additional manufacturer information about DURAMAG stainless-steel magazine construction and technology is available directly from DURAMAG.

DURAMAG Feeding Technology

The 338 ARC AR15 Magazine incorporates several DURAMAG technologies designed around cartridge control and consistent feeding.

• LipLock Technology: Designed to keep cartridges secured and properly aligned within the magazine.
• Advanced Geometry Follower™: Designed to remain level as cartridges move through the magazine.
• EverFlex™ Spring Technology: An anti-fatigue magazine spring designed for long service life and consistent operation.
• T-360™ Coating: Applied to the stainless-steel magazine body for durability and protection.

10-Round 338 ARC Magazine for the AR15 Platform

This magazine has a 10-round capacity and fits the AR-15 magazine architecture used by the CM15. That allows Chattahoochee Munitions to offer 338 ARC in the compact AR-15 platform while providing a magazine that has already been evaluated with our firearm configuration.

For CM15 owners, additional magazines provide the same configuration supplied with the firearm. There is no need to experiment with different magazine designs or determine compatibility after purchasing the rifle.

Part of the Complete CM15 338 ARC System

Chattahoochee Munitions approaches the magazine, barrel, bolt, gas system, and buffer system as parts of a complete firearm rather than unrelated components. The CM15 338 ARC platform uses adjustable gas and an adjustable buffer system, with the magazine selected and tested as another component of that overall system.

Every complete CM15 338 ARC firearm is supplied with a vetted magazine. This product allows CM15 owners to add spare magazines while retaining the same magazine configuration selected and tested by Chattahoochee Munitions.

Explore complete CM15 and CM7S firearms, barreled actions, magazines, and other current 338 ARC products at Containment Zone 338.

338 ARC AR15 Magazine Specifications

• Platform: AR-15
• Capacity: 10 rounds
• Body Material: 410 stainless steel
• Finish: DURAMAG T-360™ coating
• Follower: DURAMAG Advanced Geometry Follower™
• Spring: DURAMAG EverFlex™ anti-fatigue spring
• Cartridge Retention: DURAMAG LipLock technology
• CM Application: CM15 338 ARC
• Compatibility: Tested and vetted by Chattahoochee Munitions for 338 ARC

338 ARC AR15 Magazine FAQ

What magazine does the CM15 338 ARC use?

Chattahoochee Munitions uses a 10-round stainless-steel DURAMAG with the CM15 338 ARC. The magazine has been tested and vetted by CM for use with 338 ARC before being selected for the production firearm.

Is this magazine tested with 338 ARC?

Yes. Chattahoochee Munitions has tested this 338 ARC AR15 Magazine with 338 ARC in the CM15 platform. It is the magazine configuration supplied with complete CM15 338 ARC firearms.

What is the magazine made from?

The magazine body is manufactured from 410 stainless steel and uses DURAMAG’s T-360™ coating.

What is the magazine capacity?

This magazine has a 10-round capacity.

Does a CM15 338 ARC firearm include a magazine?

Yes. Complete Chattahoochee Munitions CM15 338 ARC firearms are supplied with a tested and vetted magazine. Additional magazines can be purchased separately for customers who want spares while maintaining the same magazine configuration used with their CM15.