MAGPUL B.A.D. Lever - Battery Assist Device AR15/M4 Developed from the operational experience of the MAGPUL Dynamics SM team, the B.A.D. Lever (Battery Assist Device) is designed to considerably improve the speed and efficiency of the AR15/M16 bolt catch. The B.A.D. Lever quickly addresses reloading and malfunction clearance shortcomings of AR15/M16 platforms by extending a paddle to the right side of the weapon, allowing manipulation of the bolt stop from the fire control/ready position with the right-hand trigger finger. Made from milspec-anodized aluminum, the B.A.D. Lever attaches to the standard AR15/M16 bolt release without permanent modification to the weapon. Functional for both left and right-handed shooters, the B.A.D. Lever also allows traditional bolt catch manipulation according to the AR15/M16 manual of arms. All mounting hardware included. Features 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 Attaches 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) * NOT compatible with 7.62x51 (.308 Winchester) firearms as well as most AR15 billet or polymer lower and upper receivers due to their larger and/or non-standard dimensions (including the S&W Magpul Spec Series lowers).