40mm Mk3
Total Production : 70
| Model | Status | Year | Produced |
|---|---|---|---|
| 40mm Mk3 | Active | ? | |
| 40 Mk4 | Active | 2015 | 35 |
40mm Mk3
Group : Naval Gun Systems
Status : Active
Also Known As : 40mm Mk4
Origin : 
Sweden
Contractor : BAE Systems
Total Production : ?
The Bofors 40mm Mk 3 L70 naval gun has been designed for use against air and surface threats such as aircraft, anti-ship missiles, fast boats and helicopters. It is a digitized computer controlled gun constructed of non-magnetic materials to reduce weight and magnetic signature. Its magazine has a capacity for 101 detonation-programmable rounds, enough for 10 engagements.
The 40mm Mk 3 gun turret has been installed on small and large ships worldwide.
Operators
| Country | Status | State | Notes |
|---|---|---|---|
 Brazil | Active | ? | |
 Estonia | Active | ? | |
 Finland | Active | ? | |
 Germany | Active | ? | |
 Iceland | Active | ? | |
 Indonesia | Active | ? | |
 Japan | Active | ? | |
 Malaysia | Active | ? | |
 Portugal | Active | ? | |
| Sweden | Active | ? | |
 Turkiye | Active | ? | |
 United Kingdom | Active | 10 | |
 Uruguay | Active | ? |
Specifications
| Notes | ||
|---|---|---|
| Magazine Capacity | 101 | |
| Dimensions | ||
| Main Gun Caliber | 40 millimeter | |
| Mass | ||
| Combat Weight | 3,850 kilogram | |
| Performance | ||
| Main Gun Max Range | 12,500 meter | |
| Rate | ||
| Max Rate of Fire | 330 roundperminute | |
40 Mk4
Group : Naval Gun Systems
Status : Active
Also Known As : Bofors 40 Mk4
Origin : Sweden
Contractor : BAE Systems
Initial Operational Capability (IOC) : 2015
Total Production : 35
The Bofors 40 Mk4 naval gun system is a new version of the 40mm Mk3 gun system used by Navies and Coast Guards worldwide. In May 2015 the 40 Mk4 naval gun was selected for the Brazilian Navy 500T Macae class patrol vessels. The cannons were selected for the Belgian and Royal Netherlands Navies' anti-submarine frigates in 2024 as well as mine countermeasures vessels in 2023.
Operators
| Country | Status | State | Notes |
|---|---|---|---|
 Belgium | Active | 10 | |
| Brazil | Active | 5 | |
 Colombia | Active | 6 | |
| Finland | Active | 4 | |
 Netherlands | Active | 10 |
Specifications
| Notes | ||
|---|---|---|
| Dimensions | ||
| Main Gun Caliber | 40 millimeter | |
News
BAE Systems has received a contract from Damen Naval for a Bofors 40 Mk4 naval gun system to be installed for anti-aircraft and anti-surface operations on the PES frigate
New naval gun capabilities bring advanced firepower to two European Navy allies BAE Systems has signed a contract with the Dutch Materiel and IT Command (COMMIT) for eight
BAE Systems has been selected to supply 12 Bofors 40 Mk4 naval guns to the Belgian and Dutch navies as part of the Mine Counter Measures Vessels (MCMV) program.
BAE Systems will produce and deliver Bofors 40 Mk4 and Bofors 57 Mk3 naval guns for the U.K. Ministry of Defence’s Type 31 general purpose frigate program.
BAE Systems will produce and deliver Bofors 40 Mk4 Naval Guns for the Finnish Navy and its Hamina Class Squadron 2000 fast attack craft, under a contract with Patria, the
BAE Systems has been awarded a contract to produce and deliver five Bofors 40 Mk4 Naval Guns for the Brazilian Navy’s 500T “Macae” Class Patrol Vessels.
KARLSKOGA, Sweden — BAE Systems AB from Sweden and World Industries Ace Corporation (WIA) from the Republic of Korea have signed a license agreement for WIA to produce Bofors
Photo Gallery
February 2021
Finnish Navy 40mm MK4 gun
January 2018
Bofors 40 Mk4 gun
December 2006
40mm Mk3
November 2006
40mm MK3 gun
Notes
State Latest Known holdings/Original Procurement
Com - Date of Commissioning
Decom - Date of Decommissioning
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