CMMG 8.6 Blackout 12.5in Barrel Sub-Assembly, 4140 Chrome Moly, Black Nitride Finish 33D430C
Product Description
Kick off your 8.6 Blackout AR-10/LR-308 pattern build with the CMMG Barrel Sub-Assembly (33D430C). This 12.5-inch 4140 chrome moly (4140CM) barrel is finished in corrosion-resistant black nitride for enhanced durability and long-term performance. Designed for short-barreled setups, it features a pistol-length gas port location and is compatible with CMMG Mk3 and DPMS Gen 1 High-Pattern LR-308 upper receivers. It also accepts 0.750-inch diameter gas blocks and uses standard 5/8x24 muzzle threads for common .30-caliber devices.
Product Highlights
- 12.5-inch 8.6 Blackout barrel sub-assembly for compact AR-10/LR-308 pattern builds
- Black nitride finish helps resist corrosion and wear for hard-use reliability
- 4140 chrome moly (4140CM) steel construction for strength and longevity
- Compatible with CMMG Mk3 and DPMS Gen 1 High-Pattern LR-308 upper receivers
- 0.750-inch gas block journal and pistol gas port location to support short-barreled cycling
Specs
- Brand: CMMG
- Manufacturer Part Number: 33D430C
- UPC: 810148628734
- Caliber: 8.6 Blackout
- Barrel Length: 12.50 in
- Material: 4140 Chrome Moly Steel (4140CM)
- Finish: Black Nitride
- Gas System: Pistol (gas port location)
- Gas Block Journal: 0.750 in
- Muzzle Thread: 5/8x24
- Twist Rate: 1:3
- Compatibility: CMMG Mk3 and DPMS Gen 1 High-Pattern LR-308 upper receivers
Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product’s manufacturer.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Product Description
Kick off your 8.6 Blackout AR-10/LR-308 pattern build with the CMMG Barrel Sub-Assembly (33D430C). This 12.5-inch 4140 chrome moly (4140CM) barrel is finished in corrosion-resistant black nitride for enhanced durability and long-term performance. Designed for short-barreled setups, it features a pistol-length gas port location and is compatible with CMMG Mk3 and DPMS Gen 1 High-Pattern LR-308 upper receivers. It also accepts 0.750-inch diameter gas blocks and uses standard 5/8x24 muzzle threads for common .30-caliber devices.
Product Highlights
- 12.5-inch 8.6 Blackout barrel sub-assembly for compact AR-10/LR-308 pattern builds
- Black nitride finish helps resist corrosion and wear for hard-use reliability
- 4140 chrome moly (4140CM) steel construction for strength and longevity
- Compatible with CMMG Mk3 and DPMS Gen 1 High-Pattern LR-308 upper receivers
- 0.750-inch gas block journal and pistol gas port location to support short-barreled cycling
Specs
- Brand: CMMG
- Manufacturer Part Number: 33D430C
- UPC: 810148628734
- Caliber: 8.6 Blackout
- Barrel Length: 12.50 in
- Material: 4140 Chrome Moly Steel (4140CM)
- Finish: Black Nitride
- Gas System: Pistol (gas port location)
- Gas Block Journal: 0.750 in
- Muzzle Thread: 5/8x24
- Twist Rate: 1:3
- Compatibility: CMMG Mk3 and DPMS Gen 1 High-Pattern LR-308 upper receivers
Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product’s manufacturer.
