Armaspec Self-Retaining Castle Nut & End Plate - Aluminum - OD Green

The Armaspec Self-Retaining Castle Nut and End Plate is an aluminum AR-15/M4 buffer tube accessory designed to simplify installation and eliminate the need for staking. The self-retention design keeps the castle nut and end plate together as a single unit, preventing loosening during use. Finished in OD Green, this combo upgrade improves reliability and aesthetics on mil-spec buffer tube setups. Compatible with standard AR-15/M4 buffer tube platforms.