Mark 38 25 mm machine gun system

Mark 38 25 mm machine gun system
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]