Best STB 556 Loadout Warzone
Muzzle: Harbinger D20.
Barrel: 508mm Rear Guard.
Optic: Aim OP-V4.
Ammunition:5.56 High Velocity.
Magazine: 42 Round Mag.
Best STB 556 loadout in Modern Warfare 2
Muzzle: Harbinger D20.
Barrel: 18" Bruen Guerilla.
Underbarrel: VX Pineapple.
Comb: FTAC C11 Riser.
Optic: SZ Holotherm.