LBE Unlimited Armorers Tool Features The LBE Unlimited Armorers Tool combines five essential functions into a single heat treated 4140 steel wrench simplifying what would otherwise require several separate specialty tools. It assists with installing and removing castle nuts during stock assembly torquing 3/4 inch muzzle brakes and working with A2 receiver extensions on fixed stock builds. The tool also handles takedown and pivot pins along with both standard and free float barrel nuts covering most of the common fasteners encountered during an AR-15 build or maintenance session. Heat treating the 4140 steel gives the tool the strength and wear resistance needed to handle repeated high torque applications without rounding or deforming. A built in 1/2 inch torque wrench interface allows the tool to be paired with a standard torque wrench for precise repeatable fastener tightening which matters for safety critical components like barrel nuts. A practical bottle opener is also built into the design a small but appreciated touch for a tool that spends a lot of time on the workbench. Finished in black the tool resists corrosion during storage and regular handling. Made proudly in the USA this armorer s tool is built to meet the demands of professionals hobbyist builders and anyone serious about properly maintaining their AR-15. LBE Unlimited Armorers Tool Specifications Manufacturer: LBE Unlimited Model: Armorers Tool Compatible Hosts: AR-15 Color: Black Material: 4140 Steel Available At: GrabAGun