About this rifle barrel
CMMG 33D430C Barrel Sub-Assembly 8.6 Blackout 12.50" Black Nitride 4140CM Barrel is a rifle barrel, 12.50 in, 1:3 in twist.
Check the gas system length, muzzle threads and profile against your handguard and gas block. The twist rate tells you which bullet weights the barrel is happiest with; 1:7 and 1:8 handle heavy bullets, 1:9 and slower favor light ones.
Manufacturer details
Kick off the 8.6 Blackout rifle build with a CMMG 16.1" barrel featuring the sleek, corrosion-resistant nitride finish. Compatible with CMMG Mk3 and DPMS Gen 1 High-Pattern LR-308 upper receivers. Accepts 0.750" diameter gas blocks.
Specifications
- Brand: CMMG
- Length: 12.50 in
- Twist: 1:3 in
- Finish: Nitride
- Manufacturer Part #: 33D430C
- UPC: 810148628734
Buying from WBT Guns
- Delivery: Ships to your door anywhere in the United States, or pick it up free at our La Mesa store.
- Payment: Pay in full or finance with Credova.
- Questions: Fitment or compatibility questions? Call (619) 667-9453 or email sales@wbtguns.com. FAQ
WBT Guns is family-owned in La Mesa, California, and has served shooters since 2012.
A note on accuracy. Specifications, fitment and images come from the manufacturer and can contain errors or change without notice. If a detail matters to your purchase, call us and we will confirm it before you order. Any compliance notes are general information, not legal advice; California and local laws change, and the rules that apply depend on the firearm the part goes on.
