XCR-L COMPETITION
5.56 NATO, 6.8 SPC, 6.5 Grendel, .224 Valkyrie, 5.45x39mm, .300 AAC Blackout, or 7.62x39mm cal., GPO, 14.7-18.6 in. light or heavy profile chrome-lined barrel, GB3 adj. gas block, A2 flash hider, MB2 or MB3 muzzle brake (muzzle device perma...