A Type 2 rifle grenade launcher, with a 30 mm Type 2 grenade (top), and a large 40 mm Type 2 grenade (bottom).
The Type 2 rifle grenade launcher was an attachment for the Japanese Type 38 and Type 99 rifles that allowed them to fire special hollow charge grenades. It was a version of the German Schiessbecher grenade launcher. Two grenades were produced for the launcher: a 30 mm calibre grenade and a larger 40 mm calibre grenade, both designated Type 2. The launcher sits over the end of the barrel, held in place with a clamping device. A special crimped blank cartridge or wooden bullet is used to fire the grenades.
The rear of the grenades is pre-rifled to mate with the rifling in the launcher. The rifling ensures that the grenade is spun in flight, giving it stability and arming the rotational fuze. Both grenades use a largely identical fuze, which makes up the rear part of the grenade. On impact, momentum carries the striker assembly forward, overcoming the resistant force of a creep spring into the detonator.
30 mm grenade
40 mm grenade
Length
160 mm (6.3 in)
180 mm (7.1 in)
Length of upper body
96 mm (3.8 in)
107 mm (4.2 in)
Diameter of upper body
30 mm (1.2 in)
40 mm (1.6 in)
Length of lower body
74 mm (2.9 in)
Weight
230 g (8.1 oz)
370 g (13 oz)
Explosive content
50 g (1.8 oz)
100 g (3.5 oz)
Explosive type
50% TNT / 50% RDX
Armor penetration
30mm [1]
50mm [1]
^ ab"Archived copy" (PDF). Archived (PDF) from the original on 2018-01-10. Retrieved 2018-01-10.{{cite web}}: CS1 maint: archived copy as title (link)
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