Spike's Tactical STLB222, Crusader, Lower, 223 Rem/556NATO, Black Finish, CNC Machined from 7075 Billet Aluminum, Integrated Winter Style Trigger Guard, Integrated Ambi Bolt Release Paddle, Integrated Ambi Magazine Release Paddle, Oversized Enhanced Bolt

Spike's Tactical STLB222, Crusader, Semi-automatic, Lower, 223 Rem/556NATO, Black Finish, CNC Machined from 7075 Billet Aluminum, Integrated Winter Style Trigger Guard, Integrated Ambi Bolt Release Paddle, Integrated Ambi Magazine Release Paddle, Oversized Enhanced Bolt Catch, Enhanced 6061-T6 Billet Magazine Catch Button, Enhanced Pivot and Take Down Pins STLB222