this is my custom we scar. internally it has a ra tech npas system, ra tech trigger group, ra tech outer barrel, ra tech 6.03 inner barrel, ra tech bolt carrier and bolt. Shoots like a charm. Getting great range 250 ft +. great recoil. externally has a king arms carbon fiber mock suppressor, real steel magpul sights, replica 552, real steal magpul rvg, real steel magpul pistol grip, tan g&p rail covers, and a surefire g2 mounted using a real steel mount.