Deactivated Type 89 "knee" mortars sell for $1,500 to $2,000. Still has the original safety pin. Arrowood completely agreed: The Jap knee mortar gives us hell. To fire the shell (which had a nose-mounted impact fuse that detonated on contact), it was dropped base-down inside the tube of the discharger. This represents a piece of World War II history and could ma.from 1540641 WW2 JAPANESE ARMY TYPE 89 GRENADE DISCHARGER (KNEE MORTAR) LEATHER COVER CASE See original listing Condition: Used "Used, leather soft, small tear at bottom edge, tear and loose stitching at end cap no carry straps" Ended: Jan 07, 2023 Winning bid: US $214.62 [ 13 bids ] Shipping: $12.50 Economy Shipping Located in: However, it is ultimately the responsibility of the buyer to be in compliance of laws that govern their specific location. To fire the shell (which had a nose-mounted impact fuse that detonated on contact), it was dropped base-down inside the tube of the discharger. They were issued at the platoon level to a single soldier who carried the tube strapped along the leg. The curved T-shaped base of the Type 89 seemed to reinforce this belief. Hachiky-shiki j-tekidant "Type 89 Heavy Grenade Launcher") or more formally the Type 89 Grenade Discharger was a rifled infantry light mortar used by Japanese forces during World War II: though referred to as a grenade launcher by the Japanese, it does not really fit the modern definition of such. An updated version, the L9A1 51mm mortar, is in use today. Weighing approximately two pounds (approx. 36), soldiers could adjust fire onto multiple targets at varying ranges while firing the contact-detonated 50mm shell through a single small clearing in the jungle canopy. The Japanese Navy paratroopers carried special containers for the Type 89 clipped to their harnesses to provide fire support right on the landing zone. Condition Report: Very good. The Japanese Army had three Type 89 in one platoon, it is the world's most used infantry support weapon. Japanese 50mm Mortar Round for the Jap Model 89 Grenade Discharger, nicknamed "knee Mortar". It was said they could put a round right in your back packet. For instance, the 6.5mm light machine gun was adopted in 1922, the 11th year of the Emperor Taisho era; thus it became the Model 11. International Military Antiques, Inc observes all Federal, State and Local laws. It had a range control device at the base of the barrel in . Some theorize that using the Type 89 in this fashion with a dedicated antitank round could have proven to be an effective tank killer, but there is no reason to believe it would have been any more effective or ineffective than the similar caliber rifle grenades fielded by various armies in World War II. The Type 89 entered service in 1929, and differs from the earlier Type 10 Grenade Discharger in that it has a rifled barrel. The Type 89 "Knee Mortar" was one of the more unorthodox weapons of WWII, but nevertheless a lethal addition to Imperial Japan's wartime arsenal. REPLY #89, Page 5 FL 07-15 PUBLIC LAW 109-461 (June 6, 2007), (legislation governing the recognition of agents and attorneys representing . The battalion was reactivated on 4 August 1950 at MCB Camp Pendleton and were assigned to the 1st Marine Division. I consider it imperative that the Army and Marines be equipped with knee mortars and only carry one type grenade., Army Sergeant C.W. It is not for sale. During World War II, the weapon was used effectively against the Allied defenders in the Battle of Corregidor in May 1942. Description Seller assumes all responsibility for this listing. [citation needed] Others were used by Communist forces during Chinese Civil War and Korean War. When fired from the Type 89 discharger, the Type 91 fragmentation grenade was fitted with a propellant base and time fuse. The Type 89 grenade discharger, commonly known as the "knee mortar" was a Japanese light infantry weapon introduced in 1929 which blurs the lines between grenade launcher and mortar.Like a mortar, it fires propelled explosive bombs in a high-angle indirect fire role, but it has a rifled barrel and uses a range adjustment mechanism very different from most mortars. 612-259-7147 REDWAGON-MPLS.COM Q E b Original storytelling since 1972. The knee mortar was a simple, yet extremely effective weapon. This is a genuine Japanese World War II 50mm Mortar, Type 89 grenade with a Type 88 instantaneous fuze. There's a lot of WWII collectors out there. Please see our. Clearly, he really wanted that weapon. JWO-0013 WWII Japanese Type 89 Knee Mortar Round (INERT/ DEACTIVATED) This item is listed for historical interest only. Being triggered rather than drop fired, the knee mortar could also be braced against a tree trunk and fired almost horizontally. The Type 91 fragmentation grenade could be thrown by hand, fired from a spigot-type launcher, or used in a mortar-like grenade discharger, the Type 89. [5] The method worked equally well when firing from deep trenches or pits, or between various building obstructions when fighting inside a built-up town or city.[5]. All Images and Text Copyright 2003-2023 International Military Antiques Inc. All Rights Reserved. Gun magazine laws, concealed weapons laws, laws governing new made display guns, airsoft guns, blank fire guns, and other items vary greatly by nation, state and locality. The Imperial Japanese Army issued three Type 89s per platoon, making it their most widely used infantry fire support weapon. Their antitank capabilities were extremely limited; artillery was often lacking and sometimes restricted to small, outmoded pieces; and its armored forces included obsolescent tanks that were greatly inferior to their opponents armor. The Type 89 is highly collectible, especially to those with an interest in Japanese weapons and relics. A weak creep spring inside the grenade firing mechanism allowed the firing pin to be thrown back upon launching, igniting a time fuse with a 7-8 second delay. All threebody parts have the number 900 stamped on them. However, any soldier or marine who tried to fire a captured Type 89 in this fashion received a severe bruise (and sometimes a broken thigh bone) from the hefty recoil. More Japanese markings and Nagoya arsenal marking under serial number on barrel. Sold Item #38846 Type 89 Japanese WWII 50mm Knee Mortar Grenade Maker: Japanese Model: Grenade Caliber: Description: This is a very nice example of a Type 89 World War 2, Japanese Army 50mm Knee mortar round grenade. Please see our. Note that the sale is for a complete inert mortar round, a true It was smaller than regular artillery pieces and was closer in size to a rifle. In addition, the weapon has a shorter barrel in caliber length than most mortars. Mike's Model 89 was deactivated after the war, with a metal bar welded across the mouth of its barrel and a hole sawed closer to its base. American soldiers overseas have encountered a number of exotic weapons over the years. By setting the Type 89 discharger at a fixed angle of 45 degrees, and varying distance to target by adjusting the size of a variable chamber space inside the discharger mechanism (see also the Granatnik wz. Gee Colin. Every musket, rifle, display machine gun, machine gun parts set or gun sold by IMA, Inc is engineered to be inoperable according to guidelines provided by the US Bureau of Alcohol, Tobacco, Firearms and Explosives (BATF). The Type 89 Grenade Launcher, Hachijuku shiki tekidant, was a light, small Mortar. IMA considers all antique guns offered on our website as non-firing, inoperable and/or inert. After he leaves, Rick and Mike get into negotiations. We have only been able to locate muster rolls for him, but 5/11 for the majority of WWII. Inert. It did not explode upon contact, but was designed to ignite its fuse while in flight. After studying employment of grenades and mortars on the battlefield, the Japanese Army developed hand grenades, rifle grenades, and grenade and mortar shell dischargers (small mortars) suited to warfare in typical short-range combat environments such as urban, trench, and jungle warfare. This made the round capable of being fired semi-accurately to ranges of over 2100-feet (650m). The Type 89 discharger and its ammunition was responsible for many Chinese and later, Allied casualties after the start of World War II, For questions or accessibility help - please call (908) 903-1200. During World War II, the weapon was used in Burma, China, and the Pacific islands. A single Japanese rifle company could field as many as 12 grenade dischargers. Classic Browning Light Twelve Auto-5 Review: Busting Clays With the Old Humpback Shotgun. Inert. As you can see in the photos, this has been w All Images and Text Copyright 2003-2023 International Military Antiques Inc. All Rights Reserved. Night attacks were a true specialty, and their weaponry reflected their light and fast doctrine. Original Item: Only One Available. But will Craig's appraisal of the Model 89 knee mortar be too high for Rick to pay? The fuze still has an intact spring in the nose, and has the original arming pin as well as the pull string, which definitely looks to be original. Stripper Clip WW2 Japanese Type 92 heavy Machinegun caliber 7.7 stripper clip of ammunition in stripper in original package. IMA considers all antique guns offered on our website as non-firing, inoperable and/or inert. It did not explode upon contact, but was designed to ignite its fuse while in flight. Related research topic ideas. To fire the shell (which had a nose-mounted impact fuse that detonated on contact), it was dropped base-down inside the tube of the discharger. | Est. He listed the following reasons: A Marine Corps legend, then-Lt. Col. Lewis M. Chesty Puller seconded Edsons opinion. These 30-ounce beauties are about the size of todays individual soda bottles. The Type 89 discharger could also be used with a more powerful impact-detonated shell approaching the power of a light mortar. Rick's first question for Craig reflects the complicated rules that the pawnbrokers must follow when buying weapons: Is it legal to own? The Season 7 episode "Wouldn't It Be Ice?" Graduated range scales for the two main types of projectiles were etched onto the stem of the tube that housed the trigger assembly. Type 10 grenade launchers are far less common and will fetch up to $3,000. Designed in 1929, the Model 89 knee mortar was used to improve the accuracy of grenades and with around 120,000 used during World War II, it's safe to say it got the job done to the satisfaction of the Imperial Japanese Army. The Type 89 "Knee Mortar" was designed to give the Japanese soldier a more powerful weapon with longer range than a hand grenade or rifle fired grenade, but without the need to dedicate an entire squad to the carrying and operation of a larger, traditional mortar launcher. Every cowboy needs a revolver. This is a genuine Japanese World War II 50mm Mortar, Type 89 grenade with a Type 88 instantaneous fuze. This was brought home and converted by a US Marine after WWII. 900 g), it was known as the Type 89 50mm shell, and was made in high explosive (HE), incendiary and smoke variants. This is an original deactivated Japanese Type 89 Knee Mortar round. Type 89 Japanese WWII 50mm Knee Mortar Grenade Description: This is a very nice example of a Type 89 World War 2, Japanese Army 50mm "Knee" mortar round grenade. They are fired by hand without a bipod, make use of simple sights, and are specifically intended to give small groups of light infantry or special forces immediate indirect fire of their own. This Japanese model 89 knee mortar round has a small Tokyo arsenal symbol punched into the side along with other markings, making it a very desirable excellent condition Japanese WW2 example. For whatever reason, Allied soldiers dubbed the weapon the knee mortar and some even tried to fire the Type 89 with the base plate braced against the thigh. After studying employment of grenades and mortars on the battlefield, the Japanese Army developed hand grenades, rifle grenades, and grenade/mortar shell dischargers (small mortars) suited to warfare in typical short-range combat environments such as urban, trench, and jungle warfare. There they learned the two lessons above and the problems realized demanded a grenade-type weapon small enough to accompany the infantry on the assault down to squad level. Remington's Nylon 66 semi-automatic .22 LR rifles have grown from 1950s bargain buys to 21st century collectors darlings. Think of it as kind of an M79 grenade launcher on steroids. Not eligible for payment with Paypal or Amazon. This item is completely legal within the USA. This product is not available for international shipping. Appendix 47: Gang Stalking, MKULTRA, Scientiology are "Zionazi" (Luciferian-Illuminati-Jewish-Masonic-German-Soviet-Nazi-UK-US-Israeli) "Psycho-Political . If you need more pictures or have anyquestions please ask. Seller: Affiliated Auctions & Realty. According to a U.S. Army manual, the Type 89 fired a 50mm round and weighed ten pounds. The Type 89 Grenade Discharger ( Hachiky-shiki j-tekidant), inaccurately and colloquially known as a knee mortar by Allied forces, is a Japanese grenade launcher or light mortar that was widely used in the Pacific Ocean theatre of World War II. The Type 89 discharger could also be used with a more powerful impact-detonated shell approaching the power of a light mortar. WWII JAPANESE TYPE 89 KNEE MORTAR ROUND INERT WW2 Estimate $150 - $250 Jun 20, 2020 See Sold Price Sell a Similar Item Shipping, Payment & Auction Policies Offers In-House Shipping Ships fromWilloughby, OH, United States Free Local Pick-UpWilloughby, OH, United States View Shipping, Payment & Auction Policies Milestone Auctions TOP RATED The Type 89 discharger first saw service in China and Manchuria. The Type 89 could fire two types of grenades or shells: the Type 91 Grenade, which was a normal infantry fragmentation grenade adapted to the Type 89 discharger, and the Type 89 50 mm shell, which was an impact-detonated shell with considerably more explosive power. The Model 89 was by far the most prolific of the grenade dischargers and the weapon most commonly encountered by Allied Marines and soldiers throughout the various theaters of the Pacific War. The Japanese Navy paratroopers carried special containers for the Type 89 clipped to their harnesses to provide fire support right on the landing zone. Not eligible for payment with Paypal or Amazon. The Type 91 fragmentation grenade could be thrown by hand, fired from a spigot-type launcher, or used in a mortar-like grenade discharger, the Type 89. While the dictionary definition of a mortar, A portable, muzzle loading cannon used to fire shells at low velocities, short ranges, and high trajectory is a match, the Type 89 is more like a grenade-firing rifle. Every display grenade, mortar, bomb, or destructive device sold by IMA, Inc is engineered to be inoperable and inert according to guidelines provided by the US Bureau of Alcohol, Tobacco, Firearms and Explosives (BATF). The book is sailor Ishmael's narrative of the obsessive quest of Ahab. Allied troops soon learned to hit the ground when they heard the telltale 'pop' of the weapon launching its grenades or shells, in some cases from more than 200 yards (183 m) away.Some Allied infantrymen mistakenly assumed that the launcher's curve plate was propped on the leg to fire and thereafter referred to it as a "knee mortar". Mar 22, 2023 LOT OF 55 ORIGINAL WWII GERMAN POSTCARDS $40. There are some Japanese characters stamped on the housing, including a date of 8 . Although the Type 89 could be fired by a single person, it was typically operated with a crew of 3, enabling it to reach a rate of fire of about 25 rounds per minute. Other Battles / Campaigns He Would Have Been A Part Of:Battle of GuadalcanalEastern New GuineaNew BritainBattle of PeleliuBattle of Okinawa, Korean War Campaigns:Inchon/Seoul CampaignBattle of Chosin ReservoirEast/Central FrontWestern Front. Photo Credit: Misnamed by the American GIs who opposed it in combat, the Japanese Type 89 knee mortar was actually a light grenade launcher fired from a position on the ground. A weak creep spring inside the grenade firing mechanism allowed the firing pin to be thrown back upon launching, igniting a time fuse with a 7-8 second delay. Serial "11127" on base and on barrel. The WWII Knee Mortar That Sold For A Surprising Amount On Pawn Stars. Microsoft Apps Home/ Documentary/ Japanese WWII Firearms Japanese WWII Firearms Documentary The Type 89 could fire two types of grenades or shells: the Type 91 Grenade, which was a normal infantry fragmentation grenade adapted to the Type 89 discharger, and the Type 89 50 mm shell, which was an impact-detonated shell with considerably more explosive power. During World War II, the weapon was used effectively against the Allied defenders in the Battle of Corregidor in May 1942. This truly excellent example is beautifully marked with serial number 24258 that is matched on the barrel, range adjustment tube, and base plate. The Type 89 shell could be adjusted to ranges of 393 to 2,132 feet. With its curved support plate, the Type 89 was designed to be placed on the ground or against a log or trunk at a fixed firing angle of 45 degrees. This is a genuine Japanese World War II 50mm Mortar, Type 89 grenade with a Type 88 instantaneous fuze. 5th Battalion 11th Marines was activated on 1 May 1942 at New River, North Carolina. Please see our. However, since it used a spring-loaded, lanyard-operated firing pin mechanism, in an emergency it could fire grenades or shells at point targets while braced horizontally against a tree or building. ob. This is not John Waynes revolver it is a modern work of art! Part mortar and part grenade launcher, the Hachiky-Shiki j-tekidant was patterned after similar devices of the period. As part of this effort, the Japanese Army had adopted by 1932 a set of fragmentation grenades with almost universal adaptability. Thus, when a new and improved 50mm knee mortar was adopted in 1929, it became the Type 89 knee mortar, with 1929 being the 2,589th anniversary of the Japanese Empire. Please see our. WW2 JAPANESE TYPE 89 GRENADE DISCHARGER (KNEE MORTAR) LEATHER COVER CASE | eBay Collectibles & Art Original Period Items Other Japanese WWII Orig Items This listing was ended by the seller because there was an error in the listing. 50% original paint remaining, bottom unscrews, Fuze has clear Kanji Markings. The Type 89 discharger and its ammunition was responsible for many Chinese and later, Allied casualties after the start of World War II, For questions or accessibility help - please call (908) 903-1200. Every display machinegun and machine gun parts set and gun sold by IMA, Inc is engineered to be inoperable according to guidelines provided by the US Bureau of Alcohol, Tobacco, Firearms and Explosives (BATF). Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Our database is searchable by subject and updated continuously. events, and resources, What Made the Dreaded Type 89 Knee Mortar So Damaging. WW2 Japanese Army Officer's Leather & Canvas Knapsack $199.99 + $29.00 shipping Very nice condition with the original paint and all matching numbered parts.BackgroundThe Japanese Army, noting that grenades were short-ranged weapons WW2 JAPANESE ARMY TYPE 89 KNEE MORTAR LEATHER COVER CASE Used Jan 27, 2023 , 2:28AM Price: US $349.00 Shipping: $29.00 Located in: JP, Japan Seller: ) Sell one like this Sponsored items from this seller Feedback on our suggestions Excellent Condition! Gee Colin. The Type 89 discharger first saw service in China and Manchuria. Other mortars are propped up on legs sort of like a tripod but the Model 89 only has a curved metal end that looks like it would fit above a soldier's knee, on the thigh. Designed in 1929, the Model 89 knee mortar was used to improve the accuracy of grenades and with around 120,000 used during World War II, it's safe to say it got the job done to the. By signing up you agree to Guns.com's Features original paint with a yellow band on body and a red band at the top. Missing cord Item Photo Gallery Click a thumbnail to view slideshow Shopping Cart The rounds are extremely low velocity to cut down on felt recoil and traveled at a 165 feet per second creep. This particular Type 89 Round still has the original safety pin on the fuze, though the string is missing, as is the internal spring. Excellent Original WWII Jap Knee Mortar with Cloth Throat Cover Deactivated $1300 SOLD If you ask any WWII Pacific War vet they will all have stories about the knee mortar. After the death of Emperor Taisho, the model numbers were calculated from the last two digits of the year since the date of the founding of the Japanese Empire. Inert of course. Depending on the round used, it had a maximum range of just under 750 yards. Everything for sale on ima-usa.com is completely legal to own, trade, transport and sell within the United States of America. The type 89 Knee Mortar was one of the most popular Japanese grenade dischargers before and during the Second World War. The Japanese Army, noting that grenades were short-ranged weapons, began efforts to optimize these weapons for close-in infantry fighting. INERT WWII Japanese Type 89 "Knee" mortar round. The answer to Sergeant Arrowoods question was a resounding no. We assume no liability associated with misuse of our products. Craig says he would estimate the value of this Model 89 knee mortar to be $2,000, adding, "If I was selling it, I'd ask $1,995 and probably get it.". The Mortar round is inert and can never be used as a weapon or for its original intended purpose, therefore complies with BATF guidelines governing ordnance. [7] Some were also used by the Vit Minh during First Indochina War[8] and by the Viet Cong during the Vietnam War. Technically, Japanese light knee mortars at first merely bridged the gap between hand grenades and true mortars and were more properly referred to as grenade dischargers. GitHub export from English Wikipedia. $140 GG-2126 WW2 Japanese cotton trousers with flannel lining. IMA works diligently to be aware of these ever changing laws and obeys them accordingly. 900 g), it was known as the Type 89 50mm shell, and was made in high explosive (HE), incendiary and smoke variants. The fuze still has an intact spring in the nose, and is stamped with several Japanese characters. For the other Japanese weapon also known as "knee mortar", see, Type 89 grenade discharger with various grenades, shells, and accessories, US Army field manual TM-E 30-480 at hyperwar, U.S. World War II Intel Report on Japanese Smoke Grenades, Lance-grenade individuel Mle F1 (LGI Mle F1), Nambu World: Type 89 Knee Mortar (Grenade Launcher), Colour pictures of the Type 89 and Type 10 at carbinesforcollectors.com, https://en.wikipedia.org/w/index.php?title=Type_89_grenade_discharger&oldid=1135034784, Type 89 50mm HE (high explosive) mortar shell (fitted with impact detonator) [Weight: ~2.00 lb (0.91kg)], Type 91 fragmentation grenade (fitted with 7 second delay time fuse, ignited in flight), Smoke shell weight: 0.9kg containing 0.11kg of HC type smoke mixture, Incendiary shell weight: 0.57kg containing 0.32kg of incendiary material, This page was last edited on 22 January 2023, at 05:58. A Cold War era classic with smooth lines, a legendary back story, and an exotic-sounding name, Beretta's Model 71 was definitely a mouse that roared. The Type 89 could fire two types of grenades or shells: the Type 91 Grenade, which was a normal infantry fragmentation grenade adapted to the Type 89 discharger, and the Type 89 50 mm shell, which was an impact-detonated shell with considerably more explosive power. The Japanese referred to the Type 89 as the Hachiky-shiki j-tekidant, or Year 89 Grenade Discharger. The battalion was deactivated on 17 February 1947. Craig says that the four-digit serial number on this knee mortar indicates that it was an earlier model, making it more valuable. Ammunition, when found, is inert (hopefully) and even then often sells for over $200 apiece. The Type 91 fragmentation grenade was a result of this thinking and was a highly adaptable device that could be . The Mortar round is inert and can never be used as a weapon or for its original intended purpose, therefore complies with BATF guidelines regarding inert ordnance. However, it is ultimately the responsibility of the buyer to be in compliance of laws that govern their specific location. However, since it used a spring-loaded, lanyard-operated firing pin mechanism, in an emergency it could fire grenades or shells at point targets while braced horizontally against a tree or building. IMA considers all antique guns offered on our website as non-firing, inoperable and/or inert. Type 100 20mm Anti-Aircraft Round Type 89 50mm "Knee" Mortar Artillery Fuzes Type 91 AA Time Fuze Type 89 Combustion Time Fuze Type 88, Large, Impact Fuze Type 88, Small, Impact Fuze Type 89 Small Time Fuze Type 100 Small Impact Fuze Bomb Fuzes Bomb Fuzes (Wind Vane) Army / Navy, Nose & Tail Types Relics of Guadalcanal .. 13.09.14 Mike's dad had served in WWII and brought some stuff back from his tour, including this deadly weapon. Here, an American Marine demonstrates a preferred firing position for one of the weapons after its capture. IMA works diligently to be aware of these ever changing laws and obeys them accordingly. The soldier who carried it wore two pouches to hold 8 rounds. Scholarly publications with full text pdf download. Also included is an original inert Type 89 mortar grenade round which was original Japanese manufacture then used by US Military for training is totally inert. Every Japanese rifle platoon consisted of three squads of riflemen and a fourth grenade discharger squad fielding three or four knee mortars. There are also a few arsenal markings on the body of the round, making it a very desirable excellent condition Japanese WW2 example. Still a relatively simple weapon, the Type 89 consisted of a steel pipelike barrel with enough rifling to spin stabilize the new projectiles, a trigger housing, a range-adjusting assembly, and a small curved base plate. Weighing approximately two pounds (approx. The Japanese Navy paratroopers carried special containers for the Type 89 clipped to their harnesses to provide fire support right on the landing zone. Original Items: Only One Set Available. What made the Model 89 knee mortar innovative was its portability: Unlike other mortars, the shape of this kind wasn't as clunky, and it didn't require any elaborate setup to use. The Army was an infantry-heavy organization that lacked much in the way of the modern heavy weaponry other armies enjoyed. Measures approx. An excellent example of the Type 89 Mortar round, ready to display! Japanese Navy paratroopers carried special containers for the Type 89 clipped to their harnesses to provide fire support right on the landing zone. The Type 89 Grenade Discharger inaccurately and colloquially known as a knee mortar by Allied forces, is a Japanese grenade launcher or light mortar that was widely used in the Pacific Ocean theater of World War II. We'll see! The Type 89 Grenade Discharger ( Hachiky-shiki j-tekidant), inaccurately and colloquially known as a knee mortar by Allied forces, is a Japanese grenade launcher or light mortar that was widely used in the Pacific Ocean theatre of World War II. This led quickly to the weapon being referred to as the leg mortar. When US troops captured these weapons, a bad translation of this moniker led to the term knee mortar and it has stuck. Sold. Every musket, rifle, display machine gun, machine gun parts set or gun sold by IMA, Inc is engineered to be inoperable according to guidelines provided by the US Bureau of Alcohol, Tobacco, Firearms and Explosives (BATF). A weak creep spring inside the grenade firing mechanism allowed the firing pin to be thrown back upon launching, igniting a time fuse with a 7-8 second delay. One of these was the peculiar case of the Japanese Army Type 89 Knee Mortar, a weapon that, despite what its name suggests, didnt have anything to do with knees, and wasnt really a mortar. The shell consisted of a point detonating fuse, a grenade body filled with about one-third of a pound of high explosive, and a propellant assembly that screwed onto the bottom of the grenade body prior to firing. | Condition: Very good. International Military Antiques, Inc observes all Federal, State and Local laws. An excellent example of the Type 89 Mortar round, ready to display! Features original paint with a yellow band on the body and a red band at the top. GG-2135 WWII Japanese Soldiers camouflage body net.