Offered here is a fully restored inert 40mm L/70 Bofors M811 High Explosive Incendiary Point Detonating (HEI-PD) Round, complete with a precision-machined dummy nose fuze for accurate display. This round has been carefully restored using the original M811 projectiles and correct L70 casings, restored to match the original paint/markings, making it ideal for collectors, educators, and museums.
Product Details
Type: Inert Restored 40mm M811 HEI Round
Gun System: Bofors L/70 40mm Autocannon
Fuze: Dummy Point Detonating (non-functional)
Condition: Fully restored, inert, and display-ready
Construction: Original projectile body, refinished and fitted with custom dummy fuze
Caliber: 40x365mmR (L/70 standard)
Use Case: Anti-aircraft and anti-vehicle autocannon ammunition (historic/training applications)
The Sgt. York DIVAD (Division Air Defense) system was a U.S. Army self-propelled anti-aircraft gun project from the late 1970s and early 1980s, intended to provide mobile air defense for ground forces against low-flying aircraft and helicopters. It was officially designated as the M247 Sergeant York.
Overview of the M247 Sgt. York DIVAD System:
Weapon Platform: The M247 Sgt. York was mounted on a modified M48A5 Patton tank chassis.
Main Armament: Twin Bofors L/70 40mm autocannons, the same family of guns that fired the 40mm M811 High Explosive Incendiary (HEI) round.
Ammunition Type: The M811 HEI round was among the types tested for the system. It was a high-velocity, high-explosive, incendiary point-detonating projectile, designed to engage airborne targets.
Fire Control System: Borrowed radar components from the F-16 fighter, including the Westinghouse AN/APG-66 radar, intended to track and engage fast, low-flying air threats.
Key Historical Points:
Program Initiated: In response to Soviet helicopter and aircraft threats on Cold War battlefields.
Testing & Challenges: Though the twin 40mm guns had high destructive potential, the system was plagued by problems—particularly with its fire control radar, which struggled to differentiate between actual targets and ground clutter (e.g., trees or moving vehicles).
Cancellation: The program was officially canceled in 1985 after more than $1.8 billion had been spent. Only 50 vehicles were produced before the Army declared the system unsuitable for modern warfare.
Ideal For:
Cold War and NATO weapons system collectors
Military museums and vehicle restoration displays
Gunnery training aids (inert use)
Defense historians and educational institutions
Bofors autocannon system exhibits
This restored inert 40mm M811 HEI Point Detonating round embodies the high-performance engineering of NATO-standard autocannon systems during the Cold War and beyond. A rare and highly detailed round, it is an excellent addition to any military ordnance collection or professional exhibit.
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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