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Naval guns2012–present
Naval gun
Bofors 40 Mk4 is a naval gun originating in Sweden. It was built by BAE Systems AB. Reported operators include Belgium, Brazil, Finland, Japan, Netherlands, Sweden.
SwedenTechnical data
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 1 Oct 2026 | 40 mm | Wikipedia contributors | superseded |
| 1 Oct 2026 | 40 mm | Wikipedia contributors | approved |
Naval gun
Sweden
2012–present
See operators
BAE Systems AB
BAE Systems AB
2009–present
Empty: 2,300 kilograms (5,100 lb )
remote controlled with gyro-stabilised local control back-up
40 × 365 cartridge weight 2.5 kilograms (5.5 lb ) shell weight 0.975 kilograms (2.15 lb )
40 mm (1.6 in)
−20°/+80°
360°
300 rounds/min
1,012 m/s (3,320 ft/s)
12,500 m (7.8 miles)
Magazine capacity : 100 ready rounds
Belgium Belgian Navy City-class mine countermeasures vessel Anti-Submarine Warfare Frigate
Brazil Brazilian Navy Macaé -class patrol vessel : Maracanã , Mangaratiba and Miramar
Finland Finnish Navy Hamina -class missile boat
Japan Japanese Coast Guard Japanese patrol vessel Shunkō
Netherlands Royal Netherlands Navy City-class mine countermeasures vessel Anti-Submarine Warfare Frigate
Sweden Swedish Navy
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
Bofors 40 Mk4 equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Belgium
Brazil
FinlandReported count for Bofors 40 Mk 4. Service scope: Finnish Navy; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): quantity: 4 (1 × per ship). Origin: Sweden. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Japan
Netherlands SwedenReported count for Bofors 40 Mk4. Service scope: Swedish Navy; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): quantity: 2. Origin: Sweden. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Belgium, Brazil, Finland, Japan, Netherlands, Sweden
Equipment reference ↗