Strike Industries Enhanced Lower Parts Kit Black with Trigger

The Enhanced Lower Parts Kit offers a convenient upgrade package for the
AR15 for those looking for a complete Strike Industries solution for new
builds, or to update their plain jane AR. The complete kit features a fire
control group which offers a crisp 4.5-5.5 lb pull, with unmatched
smoothness for mil-spec style AR15 triggers. This kit includes a bolt catch
spring, buffer retainer spring, disconnector spring, hammer spring,
magazine catch spring, pivot detent and spring, selector detent and spring,
takedown detent and detent spring, trigger detent, pin, and spring, bolt
catch plunger and roll pin, and a buffer retainer. It also includes
enhanced bolt and magazine catch, magazine catch button, pivot pin,
takedown pin, two SI selector lever, SI selector end plate, and a SI
60-90° 3-in-1 selector shaft.