The Type 38 Arisaka was the standard-issue infantry workhorse of the Imperial Japanese Army from its introduction in 1905 through the end of World War II. Renowned for its exceptionally strong Mauser-style action, low recoil, and long barrel, the Type 38 is a cornerstone of any WWII military surplus collection.
Acquiring an original, pre-1945 parts kit for the Type 38 offers historical firearms enthusiasts and restorers a direct link to the Pacific Theater. These kits typically contain the essential steel and hardware components salvaged from original decommissioned rifles, bearing the authentic proof marks, patina, and manufacturing stamps of the Japanese arsenals (such as Kokura, Nagoya, or Tokyo).
Typical Kit Components
A comprehensive pre-1945 Type 38 parts kit generally includes the following original components:
- Barrel Assembly: The incredibly long 31.3-inch barrel, chambered in the original 6.5x50mmSR Arisaka. These often feature the original front sight block and bayonet lug.
- Bolt Assembly: A robust, straight-handle Mauser-style bolt, complete with the firing pin, mainspring, and the distinctive Arisaka safety knob at the rear (often featuring intricate knurling).
- Trigger Group & Magazine: The milled steel trigger guard, trigger, sear, and the internal box magazine assembly (floorplate, follower, and spring).
- Sights: The rear ladder sight, graduated up to 2,400 meters, which includes the v-notch slider.
- Hardware & Fittings: Original barrel bands, sling swivels, nose cap, and screws.
- The Dust Cover (Optional/Rare): The iconic sliding sheet-metal dust cover that rattles back and forth with the bolt. Note: These were frequently discarded by soldiers in the field, making them highly sought after in kits.
- The Receiver (Varies by Kit): Depending on the kit type, it may include a demilitarized (cut) receiver or a stripped receiver. A key historical detail for collectors is whether the Imperial Chrysanthemum (the “Mum”) atop the receiver has been preserved or ground off (as many were post-surrender).
Technical Specifications
| Specification | Detail |
|---|---|
| Firearm Name | Type 38 Rifle (三八式歩兵銃, Sanpachi-shiki hoheijū) |
| Era of Manufacture | 1906 – 1945 |
| Primary Arsenals | Tokyo, Kokura, Nagoya, Jinsen, Mukden |
| Caliber | 6.5x50mmSR Arisaka (6.5 Jap) |
| Action Type | Bolt-Action (Mauser-derived) |
| Barrel Length | 31.3 inches (797 mm) |
| Rifling | Metford-style, 4 or 6 grooves (right-hand twist) |
| Magazine Capacity | 5-round internal box magazine (stripper clip fed) |
| Sights (Front) | Inverted V-blade with protective guards |
| Sights (Rear) | Folding leaf sight, graduated 400m to 2,400m |
| Safety Mechanism | Rotating knurled cap on the rear of the bolt |
| Metal Finish | Original Military Bluing (often carrying battlefield patina) |
| Historical Marks | Arsenal stamps, serial numbers, Imperial Chrysanthemum (Mum) |











