Mk 20 Mod 0 grenade launcher
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.
| Mk 20 Mod 0 | |
|---|---|
.jpg.webp) 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 | |
| Mass | 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 firing range | 350m |
| Maximum firing range | 400m |
| Feed system | 24 round belt |
| Sights | Iron |
References
| Pistols |  | |
|---|---|---|
| Rifles | ||
| Grenade launchers | ||
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