Vintage Japanese Military De-Activated Ordnance | WWI & WWII Imperial Japanese Army & Navy Munitions For Sale 
Rare Inert Japanese Grenades, Shells, Bombs & Artillery — Available Only at International Military Antiques (IMA)

Explore a powerful and highly collectible segment of military history with Vintage Japanese Military De-Activated Ordnance from World War I, World War II, and earlier—available exclusively from International Military Antiques (IMA). These authentic, completely inert pieces of Imperial Japanese Army (IJA) and Imperial Japanese Navy (IJN) munitions were once battlefield-ready and now stand as rare artifacts of 20th-century warfare.

Our selection includes a diverse and rotating inventory of deactivated Japanese ordnance, such as:

  • Type 97 Hand Grenades, used extensively by Japanese infantry throughout the Pacific Theater

  • Type 91 and Type 99 Grenades, adapted for both hand-throwing and launcher use

  • Mortar Shells, including 50mm "knee mortars" and rare 81mm variants used in jungle and island warfare

  • Artillery Projectiles, including armor-piercing and high-explosive rounds with visible kanji arsenal markings

  • Aerial Bomb Casings from Japanese dive bombers and carrier aircraft

  • Naval Depth Charges and Shell Casings, representing the IJN’s extensive anti-submarine efforts

  • Signal and Smoke Grenades, often marked with color-coded bands and Japanese characters

  • Fuse Assemblies, Inert Detonators, and Training Charges, used for instructional purposes or non-combat drills

Each item is carefully inspected and deactivated according to all safety and legal requirements, making them safe for display and ideal for collectors, historians, educators, and museum exhibitions. Many pieces retain original arsenal markings from Tokyo, Nagoya, or Hiroshima arsenals, and some are accompanied by their original wooden crates, carrying pouches, or fuse tins.

As seen on the History Channel, Pawn Stars, and National Geographic, IMA has been a trusted source for authentic military artifacts for over 40 years. Every item is backed by our Lifetime Authenticity Guarantee and comes with a 30-day return policy, so you can collect with absolute confidence.

Vintage Japanese ordnance, deactivated Japanese grenade, Type 97 grenade, inert WWII Japanese bomb, Japanese mortar shell, Japanese artillery projectile, Imperial Japanese Navy depth charge, Japanese military munitions, WWI Japanese ordnance, authentic deactivated Japanese explosives.

Own a rare and completely safe piece of explosive history. Shop Vintage Japanese Military Ordnance today at International Military Antiques — where history is real, original, and guaranteed.

Japanese Ordnance