Departments of the Army and the Air Force (1953).Handbook on Japanese Military Forces, TM-E 30-480 (1945) (reprint ed.). The first examples to fall into the hands of Allied military intelligence were captured at the Battle of Kiska in the Aleutian Islands, which gave rise to the nickname of “Kiska grenade” by American troops. The Type 99 was issued as a standard rifle grenade to Japanese infantrymen in the Second Sino-Japanese War and throughout the various campaigns of World War II. The Type 99 could also be used as a booby trap by removing the safety pin and setting under a floorboard or chair. Since the firing pin was integral no screwing or unscrewing of the firing pin holder was necessary, as with earlier model Japanese grenades. Operation required first removing the safety pin by pulling the cord to which it was attached and then striking the head of the fuse on a hard object, such as a rock or combat helmet, and throwing immediately. It was also slightly smaller in diameter than the Type 91. Unlike the earlier Type 91 or Type 97 grenades, the body was not segmented, but was smooth and flanged on both ends. Arisaka Type 99 7.7 Jap Rifle Rear Sight. The Type 99 hand grenade could either be thrown by hand or fired from a Type 100 grenade discharger. Arisaka Type 38 6.5 Jap Bolt Stop Ejector Box Assembly (ARIS38H022). In 1939, the Army Technical Bureau developed an improved version intended to remove these flaws. Furthermore, the Type 97 was a hand grenade and could not be used with grenade launchers. Instability and inaccuracy of the fuse mechanism made the Type 97 almost as much of a menace to the thrower as to the recipient. You can fire the gun with the bolt handle straight up - with the bolt unlocked in the receiver.Soon after introduction of the Type 97 hand grenade to front line troops, a number of problems arose. Here are some more pictures for those interested.īTW, this is a potentially dangerous rifle. The bolt slid in and now the rifle works perfectly. I made sure before placing the bolt back in the rifle that the cocking lug was pointing straight down, and the handle straight up. The spring looks absolutely brand new.Īfter a quick wipedown, I reassembled the bolt. There bolt assembly is likewise pristine. Then, for the first time in my memory, I was able to look down the bore of this rifle. Then it, the spring and the firing pin popped completely out of the bolt. When I had it back as far as it would go, I pushed in the safety and it twisted. I used a long, thing screwdriver to puch the cocking lug backwards. I found that whoever assembled the rifle last somehow managed to push the bolt into the receiver, with the cocking lug in the bolt lug channel! The cocking lug them popped up inside the hole covered by the bolt-stop block. This revealed a large hole where I could peer into the action. I took the bolt-stop block off the left side of the receiver. Last edited by lescoulee Septemat 02:30 PM. It's still sitting in my rifle cabinet in the same condition from that day, fwiw. We used that method to disassemble both my dad's rifle and my friend's rifle as well. If you use a thin screwdriver to push that tooth back far enough to allow you to rotate the bolt you can then extract the bolt, disassemble it and then reassemble it correctly. If you remove the action from the stock and look (again, IIRC) on the left side of the action (opposite the bolt handle) there's a slot giving access to a spring-loaded "tooth" or detente that locks the bolt in place (like a bolt in a door lock engaging the door frame). The problem (IIRC) is that whoever disassembled the bolt on your rifle reassembled it with the safety knob installed "upside down" (or rotated 180 degrees from correct installation). Naturally, we disassembled my dad's rifle and succeeded in duplicating the problem and locking it up as well! We borrowed one of my Dad's Arisakas to diagnose the cause. My best friend was given a very ratty Arisaka as payment for mowing a lawn. I had an experience with exactly the same problem in High School 30+ years ago. I've tried the internet remedies to open the bolt - to no avail.
There are no obvious welds holding it shut. This appears to be a rather common problem with these rifles. Both the bayonet and the rifle bear the Nagoya symbol.Īnd more pressing, the bolt is locked closed.
The stock and metal finsih seem particularly good. Other than 60+ years of closet wear and tear, I'm not sure this rifle was ever issued. Apparently, there were piles of them for the soldiers to take. This particular example was picked up by my grandfather's brother in Japan after the surrender. This is my Arisaka Type 99 "Last Ditch" rifle.
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