40mm M433 High Explosive Dual Purpose Cutaway Round
$650.00
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40mm M433 High Explosive Dual Purpose Cutaway Round
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This is the last available example of an inert 40mm M433 High Explosive Dual Purpose (HEDP) Cutaway Round, meticulously sectioned to reveal its internal components. Fully inert and safe for display, this rare instructional round offers an exceptional opportunity for collectors, ordnance historians, military educators, or museum curators to own a piece of Cold War and Global War on Terror-era munitions history.
The M433 HEDP round, part of the 40x46mm low-velocity family, was developed to serve dual roles: penetrating light armor and delivering fragmentation against personnel. First introduced in the early 1970s, the M433 became the standard-issue high-explosive round for the M203 and later the M320 grenade launchers, replacing earlier anti-personnel-only designs like the M406. The round features a shaped-charge warhead capable of penetrating 2 inches (50mm) of rolled homogeneous armor (RHA) while also dispersing steel fragmentation for anti-personnel effectiveness.
This cutaway version provides a unique view into the round’s multi-layered internal design, including the shaped charge cone, fragmentation jacket, fuze cavity, and case assembly. Cutaway models like this have been used for training Explosive Ordnance Disposal (EOD) technicians, grenadiers, and military armorers, particularly in identifying munitions and understanding their function without the risks associated with live ordnance.
Product Details:
- Designation: 40mm M433 HEDP Cutaway Round
- Caliber: 40x46mm Low-Velocity
- Compatibility: M79, M203, M320, and other 40mm LV grenade launchers
- Type: Inert / Sectioned for display or instructional use
- Material: Aluminum case, steel projectile with shaped-charge liner (inert)
- Condition: Excellent
- Availability: Only one in stock
Historical Significance:
The M433 round was a cornerstone of U.S. infantry firepower from Vietnam-era developments through modern conflicts in Iraq and Afghanistan. It allowed foot soldiers and special operations units to defeat enemy cover, vehicles, and personnel with a single munition. The M433 became essential in urban combat and counterinsurgency, where dual-purpose capability was crucial. This inert cutaway round provides a rare glimpse into the internal mechanics of one of the most effective low-velocity munitions in U.S. inventory.
Ideal For:
- Ordnance collectors
- Military and law enforcement training institutions
- Museums and historical displays
- Film and prop departments needing reference items
- Anyone with an interest in Cold War and post-9/11 infantry weaponry
Approx length 4", Approx width 2", Approx height 2", Approx weight 1lbs.
Pictures are stock images of our inventory. Unless otherwise noted, you will not be receiving the exact item shown in the pictures. The pictures are representative of the item's general condition. The item you receive might be slightly better, or worse, condition than was shown in the pictures.
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