Core15 Hardcore System X4 Description
5.56 NATO or 6.5 Grendel (new 2016) cal., GIO, 18 or 20 (new 2016) in. fluted black Nitride finished or stainless steel (new 2016, 20 in. only) barrel, rifle length gas system, low profile gas block, Lantac Dragon muzzle brake, Magpul Gen M3 20 or 30 shot PMAG, integral oversized trigger guard, Magpul MBUS Pro sights, Magpul UBR collapsible stock, 15 in. KeyMod handguard, black Hogue rubber grip, ambi safety, includes Leupold MK6 3x18x44 scope w/mount, adj. Atlas BT10 bipod w/1913 Picatinny rail mount, Sniper Grey Cerakote finish. Mfg. 2015-2018.