The CMMG AR-15 A1 Receiver Extension is a testament to quality engineering, crafted from black hard coat anodized aluminum. This rifle length buffer tube is designed to accept fixed rifle length stocks, compatible with Mk4 (AR-15) and Mk3 (LR-308) lower receivers, ensuring seamless integration and reliable performance.

Ideal for range time and training, this receiver extension offers robust construction and ease of use. CMMG is renowned for its innovation and commitment to quality, making it a trusted choice for firearm enthusiasts.

Key Features:
- Manufacturer: CMMG
- Model: AR-15 A1 Receiver Extension
- Product Type: Receiver Extension
- Material: Black Hard Coat Anodized Aluminum
- Length: 11.200 inches
- Weight: 0.250 lbs
- Unique Features: Compatible with Mk4 (AR-15) and Mk3 (LR-308) lower receivers