* Compatible with standard mil-spec forged AR15/M16 receivers * Thin, anti-snag profile and textured surface still allows for traditional manipulation of the bolt catch while maintaining unobstructed access to the trigger * asy attachment to the existing bolt catch paddle via one screw * Machined from durable billet 6061-T6 aluminum * Finished with MIL-A-8625F, Type III, Class 2 hard anodizing with manganese phosphate on the screw per MIL-DTL-16232G * Torx® mounting screw with Nyloc® Blue patch prevents back out under recoil (Torx wrench included)