This 5.56 Armalite M15 Defensive Sporting Rifle comes with an A2 sight. The M15 Defensive Sporting features a 16" double lapped, chrome lined, chrome moly barrel threaded 1/2x28, ejection port cover, forward assist, brass deflector, flash suppressor, gas block, mil-std 1913 rail, single-stage trigger, anodized finish, and 7075-T6 aluminum upper and lower receiver. Includes one 30 round Magpul PMAG. Armalite M15 5.56 Defensive Sporting Rifle A2 Sight DEF15F