Magpul Battery Assist Device Lever - AR15/M4

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The Magpul Battery Assist Device Lever - AR15/M4 is designed to considerably improve the speed and efficiency of the AR15/M4 bolt catch, the B.A.D. (Battery Assist Device) Lever quickly addresses reloading and malfunction clearance shortcomings of the platform 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.

Designed around Mil-spec forged upper and lower receivers, the anodized aluminum B.A.D. Lever attaches to the standard AR15/M4 bolt catch 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/M4 manual of arms.



  • Designed to improve the speed and efficiency of the AR15/M4 bolt catch
  • Machined from durable billet 6061-T6 aluminium
  • Torx mounting screw with Nyloc Blue patch prevents back out under recoil



Platform AR15, M4, M16
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