Used Spikes compete upper. From reciever to bcg handguard, barrel and gas block .750 all spikes. Upper does have a primary arms optic on it along with s surefire 600 with pressure pad on it. Willing to seel the light without the pressure pad and optic. Whole assy had been used. Duracoated and painted. Upper shoots tight groups at 100, pushed it as far as 300. Looking to off load as I no longer need the upper and looking at downsizing. If you want the optic and/ or light the price is 575.00 willing to negotiate price.