PTR Industries PTR-91 A3S, Semi-automatic Rifle, 308 Win, 18 Tapered Barrel, Black Finish, Fixed Stock, 1 Magazine, 20Rd, Slim Handguard, Welded Scope Mount, 5/8X24 Flash Hider, Paddle Mag Release PTR109 The A3S rifle features a black powdercoat finish, black polymer furniture, 18" tapered barrel and polymer navy lower. The precision-welded top rail allows the addition of your favorite scope or you can use the traditional iron sights (included).