The Sig Sauer 716i TREAD takes the proven design of the SIG516 and upgraded it with the heavier hitting 7.62 NATO cartridge. This direct impingement AR-platform comes equipped with a full-length flattop Picatinny rail with more than enough space for the installation of sights, scopes, optics, and accessories. Its 16 inch carbon steel barrel has a 1:10 twist rate and an adjustable gas block for tuning the rifle to the users ammunition preference. In addition, the carbine length buffer tube comes with a MAGPUL telescoping stock.