XCR-L Description
5.56 NATO, 6.8 SPC, 6.5 Grendel, 6mm ARC (new 2022), .224 Valkyrie, 5.45x39mm (disc.), .300 AAC Blackout (new 2015), or 7.62x39mm cal., GPO, 14.7, 16, or 18.6 in. light or heavy profile chrome-lined barrel, GB2 or GB3 adj. gas block, A2 flash hider, MB2 or MB3 muzzle brake (muzzle device permanently attached on 14.7 in. barrel variants), uses AR-15 mags., aluminum receivers, two-stage trigger, folding BUIS, side folding stock (standard until 2008, stock configuration optional beginning 2009), FAST2, or FAST3 folding stock (currently available), Picatinny rail handguard (disc.), KeyMod, or M-LOK handguard, ambi controls, left-side charging handle, black, FDE, or OD finish, 7 1/2 lbs. New 2006.
The model nomenclature was changed from XCR to XCR-L (lightweight) during 2008.