Buy Bushmaster AR15 Tactical Package Semi Auto Rifle Online.New unfired from the factory Bushmaster XM-15 QRC. This rifle is chambered in 5.56 Nato or .223 Remington. Barrel is the highly desired 16″ Superlight 4150 with 1 in 8 twist and FNC treatment for maximum durability and longevity. Bushmaster’s XM-15 QRC (Quick Response Carbine) is ready to hit the range out of the box. The 16″ Superlight contour barrel has an A2 Birdcage-type flash hider and is Melonite treated for longevity and ease of cleaning. Rifle comes with (1) Mini Red Dot Sight, (1) Vector Optics 3x Magnifier with Flip to Side Mount, (1) 30 round Pmag, Quad Rail, 45 degree flip up sites, and Bi Pod fore grip. The Mini Red Dot and the Vector Optics 3x magnifier is a nice optic combination that pairs nicely with this Bushmaster. Rifle is new unfired from Bushmaster.