Ar-15 A2 Stock Spacer - Brn Ar-15 A2 Stock Spacer, Aluminum

LBE Unlimited AR-15 Milspec Buffer Tube, Brown - MBUF002-WB

LBE Unlimited AR-15 Mil-Spec Buffer Tube Kit, Brown - MILBUFKT-WB

Armaspec Fixed Stock to Carbine Spacer Black - Reliable Spacer for Converting Fixed Stocks to Carbine Length for Versatile Shooting - ARM154-RFL

Armaspec A5 Spacer 0.75" in Black - High-Quality Spacer for A5 Buffer Tube Systems - ARM154-RFL/A5

Guntec USA AR-15 A2 Rifle Stock Aluminum Tube Kit

TacFire A2 Buffer, Gold

Spikes Tactical Rifle Stock Buffer Spacer, Black