6" Ballistic Advantage .300blk barrel, Aero upper and lower receivers, Aero handguard, SB Honey Badger Brace, Noveske marked CMC drop in trigger, Olight Odin Mini, BCM hand stop, Magpul Pro flip up sights, A2 flash hider, and Magpul dust cover and grip. Optic is not one the AR.