STB 556 MW2 Loadout
The best STB 556 multiplayer builds
STB 556 by Forrest Dump
Muzzle:
FTAC Castle CompBarrel:
18" Bruen GuerillaOptic:
Cronen Mini Red DotLaser:
VLK LZR 7MWRear Grip:
STIP 40 Grip
All attachments and where to unlock them
How to unlock the STB 556 in Modern Warfare 2?
| Platform | How to unlock |
| Bruen Bullpup | The STB 556 is the first weapon you unlock within the Bruen Bullpup platform. |
All attachments that you can unlock with the STB 556
| Name | Slot | Level |
| 18" Bruen Guerilla | Barrel | 2 |
| Schlager TTF3 Riser | Comb | 3 |
| Sakin Tread-40 | Muzzle | 4 |
| VLK LZR 7MW | Laser | 5 |
| Schlager Night View | Optic | 6 |
| 5.56 High Velocity | Ammunition | 7 |
| Xten Drop Grip | Underbarrel | 8 |
| 42 Round Mag | Magazine | 9 |
| Stip-40 Grip | Rear grip | 10 |
| 508MM Rear Guard | Barrel | 11 |
| Bruen MX9 Stock | Stock | 12 |
| MX9 | Receiver | 13 |
| 24.4" Bruen S-620 | Barrel | 14 |
| Dark KX30 | Muzzle | 15 |
| TL40 Fire Drake | Underbarrel | 16 |
| Single Tap MOD | Magazine | 17 |
| Harbinger D20 | Muzzle | 18 |
| Bruen HCR 56 Stock | Stock | 19 |
| HCR 56 | Receiver | 20 |
Description of the STB 556
The STB 556 is a closed-bolt rifle built around modularity and accuracy, ideal for mid to long-range fights.