I just got it put together tonight. It is put built using a Stag 5.56 Lower with an A2 stock. The upper was purchased from Pk firearms and has an 18 inch Sabre Defence stainless fluted barrel with vortex flash hider (which I will have to have changed to a Muzzle Brake tomorrow due to NY laws), YHM 12inch diamond pattern handguard and Troy Industries rail covers. The optic is a Weaver V24 6-24 x 42 with a Burris P.E.P.R. one peice mount. Once the muzzle brake is installed I will get it out to the range and see how it shoots.