I used a cmmg lower with ergo pro stock, caa grip, and 2 stage trigger. My upper is a vltor mur1a, daniel defense 14.5 barrel 5.56, yhm freefloat diamond forearm spector length, vltor charging handle, lmt bolt, and custom comp brake muzzle pin and weld. With aimpoint pro. Id post a pic but it wouldn't load for some reason. This is my first build by my self. Bring on the opinions now. All are welcomed to it.