AR-STONER Enhanced AR-15 Carbine Buffer Tube Lock Ring Steel Matte

The AR-STONER Enhanced Receiver Extension Buffer Tube Locking Ring was built to go above and beyond. The enhanced design gives this locking ring extreme strength and durability. This locking ring fits both mil-spec and commercial buffer tubes. Features:Enhanced Design for Extreme Strength & DurabilityNitride FinishFits Mil-spec/Commercial Buffer Tubes