USS Gonzalez fires her starboard-side Mk 38 Mod 2.
Type
Naval gun turret with remote and/or manual control
Place of origin
United States
Service history
In service
1986–present
Used by
See operators
Production history
Designer
Crane Division, Naval Surface Warfare Center (Mods 0–1)
BAE Systems (Mods 2–3)
Variants
4 (Mods 0–3)
Specifications
Mass
Gun: 109 kg (240 lb)
Turret: 1,042 kg (2,297 lb) unloaded
Crew
1 for operation (manual or remote control)
2 for maintenance
Shell
25 × 137 mm
Caliber
25 mm (1 inch)
Elevation
-15° to +55°
Traverse
+/-15° to +/-165°
Rate of fire
Semi, burst, or auto (up to 180 rpm (3 rps))
Muzzle velocity
APDS, APDS-T: 1,345 metres per second (4,410 ft/s)
HEI, HEI-T: 1,100 metres per second (3,600 ft/s)
Effective firing range
2,500 meters (8,200 feet)
Maximum firing range
6,800 meters (22,300 feet)
Guidance system
Mods 0–1: Manually controlled
Mods 2–3: Remotely operated with EO/IR sight, laser rangefinder, and auto-tracking; can also be manually controlled
The Mark 38 25 mm machine gun system (MGS) is a shipboard weapon system designed to protect warships primarily from a variety of surface threats, especially small, fast surface craft.[1] It consists of an M242 Bushmaster chain gun mounted on a turret that can be either manually or remote controlled, depending on variant.[2][3] Originally designed by the United States in the 1980s for use on their warships,[3] the Mark 38 is today in service on warships of various NATO countries.[4]
^"MK 38 – 25 mm Machine Gun System". www.navy.mil. Archived from the original on December 18, 2020. Retrieved October 3, 2022.
^"MK 38 25-mm machine gun". man.fas.org. Archived from the original on November 27, 2021. Retrieved October 3, 2022.
^ ab"25 mm/87 Mark 38 Machine Gun System". NavWeaps. Archived from the original on January 21, 2022. Retrieved October 3, 2022.
^"Mk 38 Mod 3 Machine Gun System (MGS)". BAE Systems | United States. Archived from the original on January 21, 2022. Retrieved October 3, 2022.
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