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AT3™Tax Season!Secure Your AR15 Buffer Assembly with a Steel Castle Nut This steel castle nut is an essential piece of an AR15 buffer tube/stock assembly. With standard cuts for use with...10 Options
AT3™Tax Season!Mil-Spec Steel Endplate for AR15 Lower Receivers This standard endplate is compatible with any mil-spec AR15 lower receiver. Perfect for completing a build that might be missing this component, or...10 Options
AT3™Tax Season!Mil-Spec AR-15 Carbine Buffer Tube Made 6061-T6 aluminum construction with a black anodized finish, with six precision-machined notches to securely lock your stock into position. This buffer tube has a...10 Options
AT3™Tax Season!The perfect kit for your next build - at a price that can't be beat. This Mil-Spec AR-15 Buffer Tube Kit includes the buffer tube, castle nut, lock plate, 3oz...10 Options
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