Forced reset trigger installed in an Aero M4E1 AR 15 lower receiver. Complete lower receiver includes super safety style FRT made by deeznuts, H3 heavy buffer, Geissele enhanced bolt catch, CMMG ambi mag release, anti-walk trigger pins, BCM end plate with QD socket, Magpul K2+ grip, SBA3 pistol brace. Great condition no noticeable wear.