USED Faxon Firearms Adjustable 3 Screw Low Profile Gas Block .750 inch Black. With a unique adjustment screw placement that prevents contact with gas port carbon this gas block remains free from seizing or carbon fouling ensuring consistent hassle-free performance in any condition. Ideal for both suppressed and unsuppressed shooting the Faxon Patent Pending Low-Profile Adjustable Gas Block offers precise adjustability to fine-tune your rifle s cycling recoil and reliability. Built with rugged materials to withstand intense use it s the ultimate upgrade for AR15 enthusiasts who demand precision. Specifications for Faxon Firearms Adjustable 3 Screw Low Profile Gas Block: Manufacturer: Faxon Firearms Color: Black Package Contents: Patent Pending Anti-Fouling Design: The adjustment screw never contacts gas port carbon so it remains clean and operational without risk of seizing. Precision Adjustability: Control your gas flow to optimize your AR15 s performance under any shooting condition with 14 tactile settings from fully open to fully closed. Package Contents of Faxon Firearms Adjustable 3 Screw Low Profile Gas Block: Faxon Firearms Adjustable 3 Screw Low Profile Gas Block Faxon Firearms GBA-LP-750-3: Adjustable 3 Screw Low Profile Gas Block .750 inch Black