Mk 20 Mod 0 grenade launcher

Mk 20 Mod 0 grenade launcher
Mk 20 Mod 0
Mk 18 Mod 0 & Mk 20 Mod 0 Grenade Launchers at War Remnants Museum (Ho Chi Minh City).jpg
Mk 20 Mod 0 Grenade Launcher (left) at War Remnants Museum (Ho Chi Minh City)
Type Automatic Grenade Launcher
Place of origin  United States
Service history
Used by US Navy
Wars Vietnam War
Production history
Manufacturer NOS Louisville
Specifications
Weight 26 pounds
Length 27 ins
Barrel length 12 ins

Cartridge 40x46mm SR
Action Blow-forward
Rate of fire Semi-Automatic
250-275 RPM Full Automatic
Muzzle velocity 250 feet per second
Effective range 350m
Maximum range 400m
Feed system 24 round belt
Sights Iron


The Mk 20 Mod 0 was a 40mm automatic grenade launcher manufactured by NOS Louisville and was used by the US Navy during the Vietnam War. It used the Blow-Forward operation that was previously used on semi-automatic pistols such as the Steyr Mannlicher M1894 and Schwarzlose Model 1908. The Mk 20 was eventually replaced by the Mk 19 Mod 3.

References


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