Magpul BAD Lever Battery Assist Device for AR15/M4 Rifles

$28.45 $27.88
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(100 reviews)
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Magpul BAD Lever Battery Assist Device


Developed from the operational experience of the Magpul Dynamics team, the Magpul B.A.D. Lever (Battery Assist Device) is designed to considerably improve the speed and efficiency of the AR15/M16 bolt catch. The Magpul 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 Magpul 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.

Made in U.S.A.


  • 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
  • Easy 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)


  • 5
    Excellent Addition for Enhancing Mag Change Speed

    Posted by Bob M. on 2nd Oct 2023

    I don't know why this device is so stigmatized by some in the AR community. This immediately enhanced my mag change speed by a few tenths of a second. This is a great fix to what, IMO is the worst-placed lever/button in Eugene Stoner's design.

  • 5
    Magpul BAD lever

    Posted by Mike on 22nd Jun 2023

    Got the product fast and it's everything I expected

  • 5
    It’s a BAD lever….

    Posted by Chris Gaston on 24th Nov 2022

    I mean honestly I’m not sure what more I can say about it. It allows me to have greater control over the rifle using a standard milspec lower. Sure you can spend obscene money and get a Knights lower, A5 lower, or other ambi lower, but this does all the same things. Dust off that old DPMS you acquired for $3000 during the pandemic for what you were told was a great deal and breathe some new life into it!

  • 5
    Magpul BAD lever

    Posted by Philip on 12th Sep 2022

    I recently purchased a Magpul BAD lever from Arms Unlimited. This lever is used to close the bolt on an AR15 with your trigger finger. The small screw that comes with the lever has some kind of Locktite on it to keep the screw from loosening after you install it. Fits perfectly and very easy to use.

  • 5
    Great product, Excellent Company

    Posted by Jerry GROCHOLSKI on 7th Aug 2022

    Great customer service,and communication. Fast shipping, great prices.

  • 5
    great additiion to an AR

    Posted by stan m on 18th Jul 2022

    received in a short time, exactly what I ordered and works just as expected too, its a great add on to a AR

  • 5

    Posted by Aaron on 24th May 2022

    Awesome product and literally the best price online! Fast shipping!

  • 5
    Great product!

    Posted by James on 24th May 2022

    Definitely improved reload time. A "must have" for any build. I added a Troy extended trigger guard to equal out the space that is taken up by the lever. No problems with gloves! Great addition!

  • 5
    Great Product!!!

    Posted by George Duron on 17th Jun 2021

    The battery assist device worked as described! It looks great and shipping was fast!!! Will buy from them again!!