Overview Reviews Product Description LBE Unlimited Mil-Spec Buffer Tube Kit , Contains Buffer Tube, Castle Nut, Lock Plate, 6 Position, Fits AR-15, Black MILBUFKT Product Videos Product Reviews Write a Review Write a Review × LBE Unlimited LBE AR MILSPEC BUFFER TUBE KIT BLK Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *