The CMMG A1 Receiver Extension is a rifle-length buffer tube finished in black hard coat anodized aluminum. It is designed to accept fixed rifle-length stocks and fit AR-15/M4/M16 pattern lowers. The extension is noted as compatible with Mk4 (AR-15) and Mk3 (LR-308) lower receivers, providing a standard rifle-length foundation for compatible builds and repairs.
Key Specifications
- This receiver extension is rifle length for standard rifle stock fitment.
- Construction uses black hard coat anodized aluminum for corrosion resistance and durability.
- Designed to accept fixed rifle-length stocks rather than adjustable carbine stocks.
- Compatible with Mk4 (AR-15) and Mk3 (LR-308) lower receivers as specified by the manufacturer.
- Pattern fits AR-15 / M4 / M16 / LR-308 buffer tube style references provided in the product description.
- Style designation is A1 as indicated in the product attributes.
The CMMG A1 Receiver Extension provides a straightforward, OEM-style rifle-length option for builders and those replacing a worn or damaged buffer tube. Its anodized aluminum finish and compatibility with common lower receiver patterns make it a practical choice for fixed-stock rifle configurations where a rifle-length extension is required.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.
