CORE15 HARDCORE SYSTEM X RIFLES Description
5.56 NATO cal., GIO, 16 or 18 in. barrel, Magpul Gen M3 20 or 30 shot PMAG, 15 in. aluminum KeyMod rail, H2 buffer, angled groove low pro gas block, Magpul MBUS Pro sights, integral oversized trigger guard, ambi safety, Core15 Hardcore billet solid aluminum alloy receivers, NiB BCG, stainless steel gas tube, Hardcore scalloped billet charging handle. Mfg. 2015-2020.
All X System rifles also included a Boyt HM 44 hardshell case, Magpul 20 and 30 shot PMAGs, range log, Otis Technologies MSR/AR cleaning system and a Frog Lube tube.