CM7S 338 ARC
Chattahoochee Munitions manufactures the CM7S 338 ARC bolt action as complete factory firearms: 8-inch and 12.5-inch pistols or SBRs, 16-inch rifles, walnut-stocked 12.5 and 16-inch models with WOOX furniture, and barreled actions. Every CM7S barrel is a Mos-Tek 416R stainless barrel with 5R rifling, finished in E100 Blackout Cerakote and threaded 5/8×24, with a 1:6 twist on the 12.5 and 16-inch barrels and 1:5 on the 8-inch.
Short-barrel subsonic shooting is what these bolt action rifles are made for. A bolt action does not cycle when it fires, so with the 307 gr subsonic load and an enclosed suppressor it adds no action noise and runs any subsonic load without tuning. The 16-inch rifles also suit supersonic loads for flatter shooting. See the full lineup in Containment Zone 338, and compare platforms in 338 ARC bolt action vs semi auto.
338 ARC Bolt Action Rifle Configurations
- 8-inch pistol or SBR, 1:5 twist: 5 lb 12 oz, in Black Tungsten, Cobalt Kinetics Green or FDE Metallic Cerakote. See the 338 ARC SBR.
- 12.5-inch pistol or SBR, 1:6 twist: 6 lb 6 oz, in the same three colors. See the 338 ARC short barreled rifle.
- 16-inch rifle, 1:6 twist: 7 lb 4 oz, no SBR registration. See the 338 ARC bolt action rifle.
- Walnut-stocked: 12.5 and 16-inch CM7S models with WOOX Exactus walnut furniture. See the 338 ARC bolt action SBR.
- Barreled actions: 8, 12.5 and 16 inches with the Remage barrel nut system, for a stock or chassis of your choice.
- Magazine: every CM7S ships with a 10-round MDT polymer AICS-pattern magazine; spares are the 338 ARC bolt action magazine.
CM7S FAQ
Who makes a 338 ARC bolt action rifle?
Chattahoochee Munitions manufactures the CM7S in 338 ARC in 8, 12.5 and 16-inch configurations, walnut-stocked models, and barreled actions in the same lengths.
What twist rate does the CM7S 338 ARC use?
1:6 on the 12.5 and 16-inch barrels and 1:5 on the 8-inch, in Mos-Tek 416R stainless barrels. Read 338 ARC twist rate for the details.
What suppressor should I use on a CM7S?
An enclosed suppressor rated for .338 caliber or larger, with subsonic or supersonic ammunition. The PLACID 375 is an enclosed suppressor rated through .375. See the 338 ARC suppressor guide.
Which barrel length should I choose?
Choose 12.5 inches for short, suppressed subsonic shooting, 8 inches for the smallest suppressed host, and 16 inches to add supersonic reach without SBR registration. Read 338 ARC barrel length.
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Lead Time is Approximately 2 Weeks
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Bolt Action
CM7S 338 ARC 12.5″ Bolt Action Pistol or SBR – Black Tungsten Cerakote
Price range: $2,649.00 through $2,749.00 Select options This product has multiple variants. The options may be chosen on the product page -
Bolt Action
CM7S 338 ARC 12.5″ Bolt Action Pistol or SBR – Cobalt Kinetics Green Cerakote
Price range: $2,649.00 through $2,749.00 Select options This product has multiple variants. The options may be chosen on the product page -
Bolt Action
CM7S 338 ARC 12.5″ Bolt Action Pistol or SBR – FDE Metallic Cerakote
Price range: $2,649.00 through $2,749.00 Select options This product has multiple variants. The options may be chosen on the product page -
Bolt Action
CM7S 338 ARC 12.5″ Bolt Action SBR – WOOX Walnut Stock
$2,749.00 Select options This product has multiple variants. The options may be chosen on the product page -
Lead Time is Approximately 2 Weeks
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CM7S
CM7S 338 ARC 16″ Bolt Action Hunting Rifle – WOOX Walnut Stock
$2,749.00 Select options This product has multiple variants. The options may be chosen on the product page -
CM7S
CM7S 338 ARC 16″ Bolt Action Rifle – Black Tungsten Cerakote
$2,649.00 Select options This product has multiple variants. The options may be chosen on the product page -
CM7S
CM7S 338 ARC 16″ Bolt Action Rifle – Cobalt Kinetics Green Cerakote
$2,649.00 Select options This product has multiple variants. The options may be chosen on the product page -
CM7S
CM7S 338 ARC 16″ Bolt Action Rifle – FDE Metallic Cerakote
$2,649.00 Select options This product has multiple variants. The options may be chosen on the product page -
Lead Time is Approximately 2 Weeks
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Bolt Action
CM7S 338 ARC 8″ Bolt Action Pistol or SBR – Cobalt Kinetics Green Cerakote
Price range: $2,649.00 through $2,749.00 Select options This product has multiple variants. The options may be chosen on the product page
