MW3: Best JAK Harbinger M4 Loadout & Class Setup
LOADOUT
Barrel:
Beast Fifty Long Barrel
Underbarrel:
SL Skeletal Vertical Grip
Optic:
JAK Glassless Optic
Rear Grip:
Sakin ZX Grip
Aftermarket Part:
JAK Harbinger Kit
Class Setup
Vest

Infantry Vest
- Increases Tac Sprint duration and reduces refresh time.
- Duplicate effects do not stack.
- If equipped with Running Sneakers, gain the effects of Lightweight Boots.
Equipment
FIELD UPGRADE

Comm Scrambler
TACTICAL

Stim
LETHAL

Throwing Knife
Perks
GLOVES

Commando Gloves
BOOTS

Covert Sneakers
GEAR

Mag Holster