SIG SAUER 716I Tread .308 Win./7.62 NATO Semi-automatic AR-10 Rifle The all-new 716I Tread combines tried-and-true direct impingement operation with premium features and a high degree of customization options to create the ultimate AR-10 platform. The 16 inch barrel is free-floated for superior accuracy, and features a precision nitride coating for corrosion resistance. The 15 inch rail sports M-LOK slots for modern accessories, as well as a full-length Picatinny rail on top for optics, etc. Under the handguard, the 716I utilizes a low-profile micro gas block that keeps the Rifle sleek and lightweight. The Magpul SL-K carbine stock features a shorter and slimmer profile that helps keep weight and bulk to a minimum. Last but not least, the 2-stage Matchlite Duo trigger provides a lighter, smoother trigger pull that puts mil-spec triggers to shame. Tried-and-true direct impingement operation 16 inch carbon steel barrel with precision nitride coating for superior corrosion resistance Magpul SL-K 6-position carbine stock is slim and lightweight 15 inch free-float aluminum handguard features both M-LOK slots and a Picatinny rail 2-stage Matchlite Duo trigger provides a lighter, smoother trigger pull that mil-spec triggers Ambidextrous safety and magazine release Low-profile micro gas block Includes (1) 20-rd. magazine Order today!