CMMG Spring Buffer Retainer AR15

CMMG Spring Buffer Retainer AR15 This buffer retainer spring is engineered to deliver the precise tension needed to keep the AR-15 buffer and buffer retainer securely in place within the receiver extension. Its durable construction ensures reliable compression and long-term performance, maintaining proper alignment of the buffer system during cycling. Ideal for new builds, repairs, or routine maintenance, this small but essential component helps ensure smooth operation and consistent function in any mil-spec AR-15 platform.