| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Anthony Wong Chau-Sang | Kwai | Steyr AUG | - |
| Anthony Wong Chau-Sang | Kwai | SIG-Sauer P226 | - |
| Anthony Wong Chau-Sang | Kwai | H&K USP | - |
| Anthony Wong Chau-Sang | Kwai | Beretta 92FS | - |
| Gordon Lam Ka-tung | Chu | Colt M1911A1 | - |
| Gordon Lam Ka-tung | Chu | Glock 17 | - |
| Gordon Lam Ka-tung | Chu | Browning Hi-Power | - |
| Gordon Lam Ka-tung | Chu | Heckler & Koch USP | - |
| Gordon Lam Ka-tung | Chu | Bushmaster M17S | - |
| Johnny Hallyday | Costello | Colt Double Eagle | - |
| Luciano Pigozzi | Domingo | Single Action Army | Uberti replica, "Artillery" model |
| Lucio De Santis | Laredo | Single Action Army | Armi Jager replica, "Artillery" model |
| Lucio De Santis | Laredo | Winchester Model 1866 "Yellow Boy" | Early Uberti replica, with brass bands |
| Simon Yam | George Fung | Beretta 92FS | - |
| Suet Lam | Fat Lok | AK-47 | - |
| Suet Lam | Fat Lok | Glock 17 | - |
| Suet Lam | Fat Lok | Beretta 92FS | Suppressed |