CM7S 338 ARC Bolt Action Magazine – 10 Round MDT AICS

Chattahoochee Munitions sells this 338 ARC bolt action magazine as the factory magazine for its CM7S 338 ARC firearms: a 10-round MDT polymer AICS-pattern magazine that Chattahoochee Munitions has tested with 338 ARC, 6 ARC and 22 ARC.

The ARC family shares the .441-inch case head, so one ARC magazine body feeds all three cartridges. See every configuration in Containment Zone 338.

Why an AICS-Pattern 338 ARC Bolt Action Magazine

AICS is the common detachable magazine pattern for Remington 700 footprint bolt actions, and the CM7 chassis has a flared AICS magazine well with an ambidextrous release. A detachable 10-round 338 ARC bolt action magazine lets you load and unload quickly, carry spares and change between subsonic and supersonic ammunition in the field.

338 ARC is loaded to a 2.260-inch maximum overall length under the SAAMI 338 ARC specification, and this magazine is sized for the ARC case and that length.

Construction

The magazine is polymer, made by MDT in the AICS pattern, and holds 10 rounds. MDT sells it as an ARC magazine; Chattahoochee Munitions has tested it with 338 ARC in the CM7S.

Compatible Firearms

• CM7S 338 ARC 16-inch bolt action rifle
• CM7S 338 ARC 12.5-inch bolt action pistol or SBR
• CM7S 338 ARC 8-inch bolt action pistol or SBR
• Walnut-stocked CM7S with WOOX furniture: 16-inch and 12.5-inch
• CM7S 338 ARC barreled actions with AICS-compatible bottom metal

Every CM7S 338 ARC firearm ships with one of these magazines. For the CM15 AR15, use the 338 ARC AR15 magazine instead.

338 ARC Bolt Action Magazine Specifications

• Cartridges: 338 ARC; also tested with 6 ARC and 22 ARC
• Capacity: 10 rounds
• Pattern: AICS
• Material: Polymer
• Maker: MDT
• Tested in: Chattahoochee Munitions CM7S 338 ARC

338 ARC Bolt Action Magazine FAQ

What magazine does the CM7S 338 ARC use?

This 10-round MDT polymer AICS-pattern magazine. One ships with every CM7S 338 ARC firearm.

Why is it labeled for 6 ARC?

MDT sells it as an ARC magazine. 338 ARC, 6 ARC and 22 ARC share the same case head, and Chattahoochee Munitions has tested this magazine with all three.

Will it fit other AICS bolt actions?

It is AICS pattern, so it fits AICS-compatible bottom metal and chassis. The rifle must be chambered and fed for an ARC cartridge.

How many rounds does it hold?

10 rounds.

Does it work in the CM15 AR15?

No. The CM15 uses the AR15-pattern 338 ARC AR15 magazine.

Who makes a 338 ARC bolt action?

Chattahoochee Munitions manufactures the CM7S bolt action in 338 ARC in 8, 12.5 and 16 inches, walnut-stocked versions with WOOX furniture, and 338 ARC barreled actions.