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

The RISE Armament 20-piece AR-15 Lower Parts Kit has all the pieces you need to assemble a lower receiver with quality parts. The Lower Parts Kit features all of the working components of a lower receiver, minus the trigger. It is compatible with mil-spec AR-15s.Most of the mil-spec parts featured in the RISE AR-15 Lower Parts Kit are made of the industry-standard 8620 steel. The 8620 carbon steel is a full-up alloy of nickel, chromium, molybdenum, with 0.2 percent carbon. It machines cleanly an