Caliber: 7.62 NATO/.308 Win., 6.5 Creedmoor. Features: AR-10-type rifle. Gas-piston operation with three-round position (four-position optional) gas valve; 16”, 18”, or 20” chrome-lined barrel with threaded muzzle and nitride finish; free-floating aluminum quad rail forend with four M1913 Picatinny rails; telescoping buttstock; the lower receiver is machined from a 7075-T6 Aircraft grade aluminum forging; upper receiver, machined from 7075-T6 aircraft grade aluminum with integral M1913 Picatinny rail. SEE POLITICAL PANIC PRICING.