Heckler & Koch
The world's most iconic law enforcement submachine gun, in continuous production since 1966. Trusted by SWAT teams, counter-terrorism units, and military forces on every continent.
| Caliber | 9mm Luger |
| Capacity | 15 / 30 rd |
| Barrel | 8.85 in |
| Action | Select-Fire |
| NFA Classification | Machine Gun |
| Operating System | Roller-Delayed Blowback |
| Stock Options | Fixed, Retractable, Folding |
| Rate of Fire | ~800 rpm |
| Procurement | Agency Purchase Only |
The HK MP5 is arguably the most recognized and widely deployed law enforcement submachine gun in history, having served in continuous production since 1966 with tens of thousands deployed across virtually every continent. Its roller-delayed blowback operating system provides exceptional accuracy and controllability in both semi-automatic and fully automatic fire. The MP5's modular design supports a wide range of configurations including fixed and folding stocks, various barrel lengths, and integrated suppressors. Its adoption by the world's most elite counter-terrorism units — including the British SAS, German GSG 9, and the US Secret Service — speaks directly to its reliability under the most demanding conditions.
| Agency / Unit | Country | Notes |
|---|---|---|
| 22nd SAS Regiment | United Kingdom | Iconic use during the 1980 Iranian Embassy Siege; remains in service. |
| GSG 9 (Grenzschutzgruppe 9) | Germany | Standard SMG for Germany's elite federal counter-terrorism unit. |
| US Secret Service | United States | Carried by Counter Assault Teams protecting the President. |
| FBI Hostage Rescue Team (HRT) | United States | Primary SMG for the FBI's elite tactical unit. |
| Thousands of Agencies Worldwide | Global | Deployed by SWAT, counter-terrorism, and military units across 6 continents. |