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    Order by 1PM CST for Same Day Shipping (Mon-Fri)

    This perfect tool for AR builds that allows installation & removal of barrel nuts, muzzle devices, rifle buffer tubes, and castle nuts.

    This tool includes:

    • A barrel nut wrench that can handle delta-rings, free float barrel nuts, and 30mm barrel nuts like the AT3 PROLOK handguard
    • 1/2" torque wrench adaptor
    • Castle and jam nut wrench (for both old and new style castle nuts)
    • A 3/4" wrench slot for installation of most muzzle devices
    • A cutout for installing/removing rifle-length buffer tubes


    • Material: 4140 Steel
    • Finish: Powdercoat

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    Customer Reviews

    Based on 9 reviews
    AT3 Armorer’s Wrench

    Wrench is overall a good buy and worth the money. Like many multi-function armorers wrenches it will fit some upper components better than others. Mine is a little loose for installing a castle nut - unless you are paying close attention it can slip. Other parts of the wrench work just fine as it should.
    AT3, as always, has the best turnaround on shipping and receiving of your merchandise as well as absolutely THE BEST customer support folks around!
    Thanks (again) AT3 Team!

    Armorer’s Wrench

    Sure makes AR work easier!! Great service and fast shipping!!

    Armorer's Wrench

    I tried to use the wrench, the wrench does not fit my standard muzzle device. The wrench does fit the barrel nut but appears to be mis-aligned; when any torque is applies it will really try to dis-engage the barrel nut. In all fairness the barrel nut is on extremely tight well past 60 ft./lbs. and could be galled on the aluminum receiver. I am soaking the nut with aero kroil and hoping for the best.

    Great price for a great product

    This is my second one! Great product

    Gets the job done

    Not bad. The coating that is put on the tool came with a chip in it and isn’t as smooth and uniform as I would ideally like. That being said the tool seems to function, but if I was going to use it frequently I’d buy something else.