LBE Unlimited is a quality manufacturer of AR-15 parts and accessories. The Complete F Marked Front Sight Base comes with Taper Pins” Sight Post” Detent” Spring” Swivel” and Swivel Rivet.
LBE Unlimited Complete “F” Marked Front Sight Base, Taper Pins, Sight Post, Detent, Spring, Swivel, and Swivel Rivet ARFSB-KIT