Perfect for my mil-spec ar-15 / m4 build - TRYBE Defense AR-15 Carbine Buffer & Spring Mil-Spec

I purchased three kits of the mil-spec buffer and spring with the buffer tube, castle nut and end plate for three AR lower builds. Parts are great quality. Mil-spec tube fit both Magpul butt stocks and Adaptive Tactical EX Performance butt stock with excellent tolerance. I especially liked the little tab included on the threaded end of the buffer tube which ensures it is screwed in to the correct place, but also lines up the tube slot at a perfect six o'clock position for mounting the butt stock straight. Have not shot with it yet. Yes, I would buy it again.