A1 Receiver Extension

Rifle length buffer tube AR-15/M4/ M16/LR-308 pattern. Made from black hard coat anodized aluminum, the CMMG A1 receiver extension (buffer tube) is designed to accept fixed rifle length stocks and is compatible with Mk4 (AR-15) and Mk3 (LR-308) lower receivers.

Description:

• Rifle length buffer tube AR-15/M4/ M16/LR-308 pattern
• Made from black hard coat anodized aluminum, the CMMG A1 receiver extension (buffer tube) is designed to accept fixed rifle length stocks and is compatible with Mk4 (AR-15) and Mk3 (LR-308) lower receivers