With a mil-spec flattop upper and two 1/2" risers you get a rock solid picatinny mounting platform for your preferred optic. We offer standard, 3 day express, 2 day express, and overnight express shipping options for your convenience. This rifle has a birdcage flash suppressor, A3 upper receiver with picatinny rail, and a removable carry handle. 223 Remington/ 5.56 NATO and has a 16' chrome lined barrel. In Stock - Ships Today Fast and Accurate Order Processing. The Bushmaster M4A3 Patrolmans Semi Auto AR-15 Carbine is one of the most popular AR style rifle on the market. Specifications and Features: Bushmaster M4A3 Semi Auto Carbine 5.56 NATO chamber accepts. Bushmaster XM-15 Classic AR Build Kit With Scope - Everything Needed Except For Lower Receiver, High-Quality Components. It sports the standard M4 polymer handguards and a 6 position collapsible stock. As a result the M4A3 is a great choice for a quality AR-15. This Bushmaster ORC features a M4 profile 16" 4150 CMV chrome lined barrel with a V-Match gas block. Modern Sporting Rifles with a seemingly endless array of features and configurations are fast becoming the preferred rifle for legally armed citizens across America. The Bushmaster XM-15 Optics Ready Carbine is an affordable premium quality AR-15 style multi-purpose rifle suitable for hunting, defense or competition. manganese phosphate outer coating insures protection against corrosion or. Bushmaster XM-15 ORC M4A3 AR-15 Semi Auto Rifle 5.56 NATO 16" Barrel 30 Rounds M4 Polymer Handguard 6 Position Collapsible Stock Black Finish Sport a Bushmaster M4-A3 XM-15 Patrolman's Carbine Rifle in GTA Based on Cisconetto's M4A1 Carbine, retextured because i love the rifle IRL and figured why not share. Bushmaster M4 A3 Patrolmans AR-15 Type Carbine.