About this rifle barrel
CMMG Barrel Sub-Assm 16.1inch MT 4140CM SBN 5.56mm is a rifle barrel for AR-15 in 223 Remington/5.56 NATO, 16.10 in, 1:7 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
CMMG's Barrel Sub-Assembly is ideal for building your custom AR-15 upper group. It comes with properly installed M4 barrel extension.
Specifications
- Brand: CMMG
- Fits: AR-15
- Caliber: 223 Remington/5.56 NATO
- Length: 16.10 in
- Twist: 1:7 in
- Barrel Type: Midlength
- Finish: Nitride
- Barrel Features: Medium Taper Profile
- Manufacturer Part #: 55DC70A
- UPC: 815835016153
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.
