Install this RISE Armament Lower Parts Kit AR-15 Minus Trigger to keep your firearm functioning at its full potential. These AR15 Lower Parts from RISE Armament include 20 pieces to complete your lower build. The RISE Armament AR15 Lower Parts Kit Without Trigger comes with standard trigger pins and safety, but these kits do NOT come with a trigger. Whether you need to replace a few parts or the whole receiver, this reliable RISE Armament AR-15 Lower Parts Kit (No Trigger) will get the job done right. Does not include fire control group or grip.