AR-15 Lower Build And Trigger | Rise Armament RA-100
This video details the assembly of an AR-15 lower receiver, highlighting the installation of various components including an Armspec captured buffer system, B5 furniture, an Anderson milspec lower, and a Rise Armament lower parts kit. The primary focus is on the Rise Armament RA-100 trigger, with shooting impressions emphasizing its short reset and lighter brake compared to standard milspec triggers.












