I built this for my daughter for Christmas. DPMS panther .223 lower, DD Parts kit, Tapco stock, and grip, Laru mount, CompM2, SIG 556 flash hider, CZ V-22 upper, barrel, and bolt, YHM FFH with trim ring, GPS-02 grip pod, all coating work done by T&TGunFinishing, barrel threadded by Sailors Machine shop.