Wilson Combat Gas Block Lo-Profile .875 ID Medium

A rugged securely mounted gas block is a critical aspect of AR-15 reliability. This lo-profile gas block will fit underneath all popular free-floating rail systems but heavy enough to evenly dissipate heat and resist gas leakage even in high-round count use. Precisely machined from hardened chromoly steel with a dark corrosion resistant phosphate finish this is the ideal gas block for a professional or amateur custom AR build. Precision bored to .875" and perfect for your Wilson AR barrel or the barrel of your choice. Secures to barrel with provided hardened set screws.Features: Precision Bored to .875" Precisely Machined from Hardened Chromoly Steel Corrosion Resistant Blacknitride Finish Secures to Barrel with Provided Hardened Set Screws Gas Tube Roll Pin Included .920" Length .400" Set Screw Spacing