Stag Arms Stag-15 SPR 5.56 NATO/.223 Rem. Semi-automatic AR-15 Rifle Inspired by the legendary Mk12 Special Purpose Rifle, the Stag-15 SPR (Special Purpose Rifle) was designed for greater effective range than a standard M4 Carbine without stepping up to a larger caliber. Chambered in 5.56 NATO with a 1:7 inch twist rate and a rifle-length gas system, the SPR allows you to use a wide variety of projectiles including the Mk 262 77-grain Open Tip Match round originally developed for the SPR program. The Stag-15 SPR is made 100% in-house in the USA, and comes fully outfitted with quality Magpul furniture. ANDa |it's backed by both an Infinite Shot Barrel Guarantee and a Lifetime Transferable Warranty. But how does it perform? In a word: awesome. Built around mil-spec upper and lower receivers, the Stag-15 SPR features an 18 inch CMV steel barrel that's chrome-lined to reduce throat erosion and resist corrosion. The Magpul MOE Rifle stock features a sleek profile that provides quick and intuitive shouldering, even if you're wearing body armor. A Magpul MOE pistol grip complete the package. 18 inch 4150 CMV barrel is chrome lined to prevent throat erosion and resist corrosion 1:7 inch twist and rifle-length gas system allows you to shoot a wide range of projectiles, including the Mk 262 77-gr. Open Tip Match round developed specifically for the SPR Magpul MOE Rifle stock provides a sleek profile that's easy to shoulder 16.5 inch lightweight M-LOK handguard has a full-length Picatinny top rail for optics placement Magpul MOE pistol grip Low-profile gas block Flat Dark Earth finish Backed by a Lifetime Transferable Warranty and Infinite Shot Barrel Guarantee Includes (1) 30-rd. magazine Order today!