Rise Armament 12003 Lower Parts Kit (No Fire Control Group) Black for AR-15

The Rise Armament 12003 Lower Parts Kit is a MIL-SPEC, 20-piece small-component kit containing every pin, spring, detent, and piece of hardware needed to assemble a complete AR-15 lower receiver. This kit is configured for builders who already have, or plan to source separately, their own fire control group, pistol grip, and trigger guard, none of which are included.