Extreme Engineering Tactical II Commander Hammer Set includes a Tactical Match Sear, Commander Match Hammer, and Tactical Disconnector. This set is for the 1911/2011 Tactical & Carry pistol shooter who wants an ULTRA Clean trigger job, that provides the cleanest and crisp trigger pull while maintaining a trigger pull weight that is suitable for Tactical and Carry type duties. This set is specifically prepped and matched to give a 4 lb. trigger pull without any stoning of the sear or hammer. Fits all 1911/2011 formats.