| OSP-30 Flare Pistol |
- |
- |
- |
| OSS Pistol Glove |
- |
- |
- |
| OSSh-42 Flare Pistol |
- |
- |
- |
| Oberndorf Mauser Sporter |
- |
- |
- |
| Oerlikon 20 mm Cannon |
- |
- |
- |
| Oerlikon 20mm Cannon |
- |
- |
- |
| Olympic Arms K23B |
- |
- |
- |
| Olympic Arms K23B Tactical |
- |
- |
- |
| Olympic Arms K3B Carbine |
- |
- |
- |
| Olympic Arms K4B |
- |
- |
- |
| Olympic Arms M4 |
- |
- |
- |
| Olympic Arms OA-93 |
- |
- |
- |
| Ordnance SBML 2 inch Mortar |
- |
- |
- |
| Orion Flare Gun |
- |
- |
- |
| Orion flare gun |
- |
- |
- |
| Ortgies 6.35mm Pocket Pistol |
- |
- |
- |
| Ortgies Pocket Pistol |
- |
- |
- |
| Ottoman Musket |
- |
- |
- |
| Ottoman musket |
- |
- |
- |
| Over and Under Rifle/Shotgun |
- |
- |
- |
| Over and Under Shotgun |
- |
- |
- |
| Over and under combination rifle/shotgun |
- |
- |
- |
| Over/Under Shotgun |
- |
- |
- |
| Owen Submachine Gun |
- |
- |
- |
| P-64 |
- |
- |
- |
| P-83 Wanad pistol |
- |
- |
- |
| P1001 |
- |
- |
- |
| P226 |
- |
- |
- |
| P90 |
- |
- |
- |
| PAK 40 |
- |
- |
- |
| PAMAS G1 |
- |
- |
- |
| PDT-9T Esaul |
- |
- |
- |
| PDT-9TEsaul |
- |
- |
- |
| PGM Hecate II |
- |
- |
- |
| PGM Ultima Ratio |
- |
- |
- |
| PGM Ultima Ratio Intervention |
- |
- |
- |
| PGW Coyote |
- |
- |
- |
| PIAT |
- |
- |
- |
| PK |
- |
- |
- |
| PK Machine Gun |
- |
- |
- |
| PKM |
- |
- |
- |
| PKM Machine Gun |
- |
- |
- |
| PKP Pecheneg Machine Gun |
- |
- |
- |
| PKT machine guns |
- |
- |
- |
| PM md. 90 |
- |
- |
- |
| PM-63 |
- |
- |
- |
| PM-63 RAK |
- |
- |
- |
| PM-63 RAK submachine gun |
- |
- |
- |
| PM-84 Glauberyt |
- |
- |
- |
| PM-84P Glauberyt submachine gun |
- |
- |
- |