The MK22 MOD 0 rifle features a lightweight folding stock with adjustable cheek piece, ambi mag release and Barrett's M-LOK rail system. Its fluted barrel features a high efficiency, suppressor capable muzzle brake. Comes with all three caliber kits listed, five 10 round magazines per caliber, bipod, bag rider, three accessory rails, two bore guides (7.62 and .300/.338), stock spacer kit with four spacers and hardware, cleaning kit with rod, tool kit with torque wrench and bits, operator spare parts kit, sling with quick detach sling loops, suppressor cover, soft case, and hard case.