The CMMG AR-15 Barrel Nut is a direct replacement component that secures the barrel extension to the upper receiver and provides the mounting platform for your handguard.
- Part Type: Barrel Nut
- Compatible Firearms: AR-15 platform rifles with mil-spec upper receivers
- Material: Steel
- Finish: Phosphate
- Installation: Professional Recommended – requires barrel nut wrench, torque wrench, and proper gas tube alignment
- Includes: Barrel nut only (no wrench or hardware included)
