The CMMG 55CA9A7 buffer assembly is engineered for AR15 platforms and features robust stainless steel construction throughout. This rifle-length buffer assembly serves as a replacement buffer for AR-15s equipped with a rifle-length receiver extension. The A1 buffer includes 5 standard weights, allowing you to dial in your rifle’s recoil dynamics and cycling characteristics to match your specific firearm configuration and ammunition preferences.
Stainless steel fabrication provides durability and corrosion resistance suitable for extended field and range use. CMMG manufactures high quality parts and accessories for the AR-15 platform, and this buffer assembly is engineered to reliable OEM specifications for drop-in compatibility with your AR-15 build.






