CMMG Banshee 200 Mk57 5.7x28mm/Mk4 5.7x28mm Conversion
5.7x28mm cal., radial delayed blowback, 8 in. CM barrel, 20 shot Five-seveN, 6-pos. RipBrace, CMMG RML7 M-LOK free float handguard, forged aluminum Mk4/Mk57 receivers, Type III hardcoat anodized finish, available as Mk4 Conversion model w/4...