K3B CARBINE
5.56 NATO, 6.8 SPC (new 2016), or .300 AAC Blackout (new 2016) cal., GIO, 16 in. match grade chrome moly steel threaded heavy barrel with A2 flash suppressor, adj. A2 rear sight, Fiberite carbine length handguard, A2 (disc.) or M4 collapsib...