40mm M433 HEDP

Overview

40x46mm M433 HEDP

Chest rig of a US marine filled with 40x46mm M433 HEDP grenades for the M203A1 grenade launcher on his M4 carbine as seen in Afghanistan in 2009.
Source: US Marine Corps - © Public domain

Origin

United States

Type

Launched grenade

Entered service

1971

Status

In service

Development

1960's

Developer

United States - US Army Ordnance

Production

1970 - present

Producer

United States

Number produced

Produced in very large numbers

Designations

HEDP | High Explosive Dual Purpose
M433 HEDP (US military service)

Details

Facts M433 HEDP

General

Origin

United States

Type

Launched grenade

Class

40x46mm NATO

Dimensions

Diameter

40 mm

Length

103 mm

Weight

0.230 kg complete round

0.18 kg grenade

Composition

Fuse type

Impact

Arming distance

14 m

Filling

45 g Comp A-5 plus shaped charge warhead

Effect

Lethal radius

5 m casualty radius

Penetration

50 to 61 mm

Application

Projection method

Launched from 40x46mm NATO grenade launchers

Range

About 400 m

Velocity

76 m/s

Platforms

Note: incomplete list

M79

Standalone grenade launcher used extensively in the Vietnam war.

M203

Under barrel grenade launcher for use on the AR-15 series of assault rifles, such as the M16 and M4.