The AR15 Carbine Buffer Kit is the perfect upgrade to standard AR-15/M4 rifle builds. This complete AR-15 buffer tube assembly kits features Mil-spec components that are manufactured in the USA with a Limited Lifetime Warranty. The carbine buffer kit includes a Mil-Spec 6-position diameter T6 aluminum buffer tube, a carbine buffer, a buffer spring, an end plate, and a castle nut.
