We hesitate to describe the MTZ-556 as a flex weapon, but it's phenomenally fast for an AR, at least compared to anything on offer last year. If you like to play ARs, but you also play aggressively, we recommend this weapon. Here is the best MW3 MTZ-556 loadout.
The MTZ-556 has low damage per bullet but a fast rate-of-fire, so it's actual TTK is very impressive, at least in close and mid-range engagements. It also has great handling and mobility stats, and not too much recoil.
We've been loving this weapon as a secondary on our sniper loadouts, but we also think it can be used as a primary in its own right. In the loadout guide below we suggest the best attachments for the MTZ-556, as well as the right perks and equipment to go with it.
If you want to see how this weapon compares to everything else, check out our tier-ranking of every gun in MW3.
Note: We update our loadouts whenever a new MW3 patch affects the weapon or the relevant attachments.
MW3 MTZ-556 Loadout: The Best Attachments
| Slot | Attachment | Stats (Pros) | Stats (Cons) | How To Unlock |
| Barrel | MTZ Drifter Barrel | ↑↑ Bullet Velocity & Range ↑ Aiming Idle Stability ↑ Recoil Control | ↓ Movement Speed ↓ Sprint To Fire Speed ↓ Sprint Speed | MTZ-556 Level 16 |
Optic | Slate Reflector | ↑ Precision Sight Picture | Striker Level 12 | |
| Rear Grip | Bruen TR-24 Assault Grip | ↑↑ Firing Aim Stability ↑ Recoil Control | ↓ Aiming Idle Sway | MTZ-556 Level 8 |
| Ammunition | .556 Nato High Grain | ↑↑ Bullet Velocity ↑ Damage Range | ↓↓ Recoil Control | MCW Level 11 |
| Underbarrel | XRK Edge BW-4 Handgrip | ↑ Aim Walking Speed ↑ Aim Down Sight Speed ↑ Sprint To Fire Speed ↑ Movement Speed | ↓↓ Tac Stance Spread ↓ Hipfire Spread ↓ Aim Walking Steadiness | Rival-9 Level 9 |
With an AR we naturally want to increase our range and recoil control, and we're prepared to sacrifice a little bit of mobility and "Tac Stance Spread" to achieve it. You might want to invest in an extended mag or a silencer, in which case we would suggest dropping the Rear Grip first. But we don't feel like those attachments are worth it for most AR players.
MW3 MTZ-556 Loadout: The Best Equipment, Field Upgrade & Perks
Our recommendation for how you should finish this loadout:
| Slot | Option |
| Tactical | Flash Grenade |
| Lethal | Breacher Drone |
| Field Upgrade | Trophy System |
| Vest | Infantry Vest |
Gloves | Quick Grip Gloves |
| Boots | Stalker Boots |
| Gear | EOD Padding |
With an MTZ-556 you want all the classic perks for a main AR, included Stalker Boots for faster strafe speed, Quick Grip Gloves for faster weapon swap, and a Trophy system to throw down whenever you're holding a power position. We actually love this new perk system, to be honest.
If you want to see exactly what effects you will benefit from, check out our hub on all the perks in MW3 here.
And there you have it, a complete rundown of the best MTZ-556 loadout in MW3. If you want to see what the other ARs are like, check out our ranking of all the Assault Rifles in MW3.