Bruen Bullpup Modern Warfare 2 Platform
All attachments of the Bruen Bullpup Platform
| Name | Weapon unlock | Level |
| 18" Bruen Guerilla | STB 556 | 2 |
| Schlager TTF3 Riser | STB 556 | 3 |
| 42 Round Mag | STB 556 | 9 |
| Stip-40 Grip | STB 556 | 10 |
| 508MM Rear Guard | STB 556 | 11 |
| Bruen MX9 Stock | STB 556 | 12 |
| MX9 | STB 556 | 13 |
| 24.4" Bruen S-620 | STB 556 | 14 |
| Single Tap MOD | STB 556 | 17 |
| Bruen HCR 56 Stock | STB 556 | 19 |
| HCR 56 | STB 556 | 20 |
| FTAC Hornet 20" | HCR 56 | 2 |
| 100 Round Mag | HCR 56 | 3 |
| Bruen G305 Grip Wrap | HCR 56 | 5 |
| Bruen TS-30 Comb | HCR 56 | 15 |
| Bruen Turaco 686MM | HCR 56 | 17 |
| 32 Round Mag | MX9 | 2 |
| FTAC C11 Riser | MX9 | 5 |
| 16.5" Bruen S901 | MX9 | 7 |
| Bruen Q900 Grip | MX9 | 13 |