The Six 12-SD is the suppressed version of the Six 12 and has an integral silencer in the barrel assembly. Oddly, unlike all other suppressed versions of weapons in game, the Six 12-SD features the exact same stats as the Six 12 unsuppressed, making the unsuppressed version pointless. The Six 12-SD is also unique because it is the only shotgun for the Stealth class and similarly the only suppressed shotgun.
Like the Six 12, the Six 12-SD cannot use the Ejection Port Reload.
| Weapons of Door Kickers | |
|---|---|
| Pistols | |
| Submachine Guns | |
| Rifles | Bren A1 · Commando 553 · G36C · HK416D10(SD) · Honey Badger · M4 · MCX 300 · Mk 16 PDW · Mk 17 Long Barrel · SAR-18 · X635 |
| Shotguns | Breacher · Joint Combat Shotgun · KSG · M26 LSS · M590 · M870 Room Clearer · S12K Tactical · Six 12(SD) |