XCR-L STANDARD PISTOL
5.56 NATO, 6.8 SPC, 6.5 Grendel, .224 Valkyrie, .300 AAC Blackout, or 7.62x39mm cal., GPO, exposed or buried gas block, 9.5 (buried gas block only), 11, 12, or 14.7 in. light profile chrome-lined barrel, GB2 or GB3 adj. gas block, A2 (disc....