GP-25: Difference between revisions

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GP grenade launchers are similar in appearance and fire the same Russian 40mm caliber ammunition. At the top of the barrel is the mounting hardware to attach the weapon to the underside of a rifle barrel, from which it is designed to fire. The GP barrel has a useful life of about 400 rounds.<ref>{{Cite web |title=GP-25 KASTYOR Under-barrel Grenade Launcher |url=http://www.armaco.bg/en/product/under-barrel-grenade-launchers-c9/gp-25-kastyor-under-barrel-grenade-launcher-p99 |access-date=2024-04-12 |website=Armaco JSC, Bulgaria |language=en}}</ref>
GP grenade launchers are similar in appearance and fire the same Russian 40mm caliber ammunition. At the top of the barrel is the mounting hardware to attach the weapon to the underside of a rifle barrel, from which it is designed to fire. The GP barrel has a useful life of about 400 rounds.<ref>{{Cite web |title=GP-25 KASTYOR Under-barrel Grenade Launcher |url=http://www.armaco.bg/en/product/under-barrel-grenade-launchers-c9/gp-25-kastyor-under-barrel-grenade-launcher-p99 |access-date=2024-04-12 |website=Armaco JSC, Bulgaria |language=en}}</ref>


The GP-30 first entered service in 1989,<ref name=":0" /> and is intended for use with the [[AK-100 (rifle family)|AK-100]] series of assault rifles. The GP-30M is a grenade launcher of simplified model, consisting of a shorter 40mm rifled barrel in front of a basic [[Trigger (firearms)|trigger]] mechanism with minimal hand grip.
The GP-30 first entered service in 1989,<ref name=":0" /> and is intended for use with the [[AK-100 (rifle family)|AK-100]] series of assault rifles. The GP-30M is a grenade launcher of simplified model, consisting of a shorter 40 mm rifled barrel in front of a basic [[Trigger (firearms)|trigger]] mechanism with minimal hand grip.


The current [[Izhmash]]-made version, the '''GP-34''', has a further-redesigned sighting system located to the right side of the weapon and features the following advantages:
The current [[Izhmash]]-made version, the '''GP-34''', has a further-redesigned sighting system located to the right side of the weapon and features the following advantages:
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== Ammunition ==
== Ammunition ==
[[File:10th Mountain Division, Afghan National Army, Afghan Border Patrol Service Members Patrol Khas Kunar District DVIDS187644.jpg|thumb|An [[Afghan Army|Afghan National Army]] soldier armed with a GP-25/30 on patrol in [[Kunar Province|Kunar]] province, [[Khas Kunar District|Khas Kunar]] district of [[Afghanistan]], July 1, 2009.]]
[[File:10th Mountain Division, Afghan National Army, Afghan Border Patrol Service Members Patrol Khas Kunar District DVIDS187644.jpg|thumb|An [[Afghan Army|Afghan National Army]] soldier armed with a GP-25/30 on patrol in [[Kunar Province|Kunar]] province, [[Khas Kunar District|Khas Kunar]] district of [[Afghanistan]], July 1, 2009.]]
GP grenade launchers fire multiple 40mm VOG-25 high-explosive fragmentation grenades, with a total range of 400 meters and an effective range of 150m.<ref name=":0" /><ref name=":3" /> These Russian-Soviet 40&nbsp;mm grenades are not compatible with Western 40x46mm grenades.<ref name=":0" /> Originally, the main grenade was the VOG-15 (7P17) fragmentation grenade, which has a lethal radius of six meters. Ammunition for the muzzle-loading GP-25 consists of a single piece containing propellant and charge, as opposed to the more traditional two-piece case and projectile design of comparable US [[List of 40 mm grenades|40x46mm]] ammunition used in breech-loading grenade launchers, such as the [[M203 grenade launcher|M203]]. This integral "caseless" design – with the propellant and primer contained in the base of the grenade –  provides for when the grenade is fired nothing is left in the barrel, so the operator can load the next grenade.<ref name=":3" />
GP grenade launchers fire multiple 40mm VOG-25 high-explosive fragmentation grenades, with a total range of 400 m and an effective range of 150 m.<ref name=":0" /><ref name=":3" /> These Russian-Soviet 40&nbsp;mm grenades are not compatible with Western 40x46  mm grenades.<ref name=":0" /> Originally, the main grenade was the VOG-15 (7P17) fragmentation grenade, which has a lethal radius of six meters. Ammunition for the muzzle-loading GP-25 consists of a single piece containing propellant and charge, as opposed to the more traditional two-piece case and projectile design of comparable US [[List of 40 mm grenades|40x46mm]] ammunition used in breech-loading grenade launchers, such as the [[M203 grenade launcher|M203]]. This integral "caseless" design – with the propellant and primer contained in the base of the grenade –  provides for when the grenade is fired nothing is left in the barrel, so the operator can load the next grenade.<ref name=":3" />


A bouncing grenade, the VOG-25P, is also available. On impact, a small charge in the nose of the grenade explodes; this raises the grenade 50cm to 1.5m in the air, before an impact delay [[Fuse (electrical)|fuse]] causes it to detonate.<ref name=":3" /> The VOG-25P also has a lethal radius of six meters. The new generation VOG-M and VOG-PM ammunition, with an increased effectiveness of no less than 1.5 times, are now serially available.<ref>{{Cite web |last=RIA News |date=November 10, 2016 |title=Юрий Набоков: гранатомет "Балкан" могут принять на вооружение в 2017 году |trans-title=Yuri Nabokov: the Balkan grenade launcher may be put into service in 2017 |url=https://ria.ru/20161110/1481076567.html |access-date=2024-04-12 |website=[[RIA Novosti]] |language=ru}}</ref>
A bouncing grenade, the VOG-25P, is also available. On impact, a small charge in the nose of the grenade explodes; this raises the grenade 50 cm to 1.5 m in the air, before an impact delay [[Fuse (electrical)|fuse]] causes it to detonate.<ref name=":3" /> The VOG-25P also has a lethal radius of six meters. The new generation VOG-M and VOG-PM ammunition, with an increased effectiveness of no less than 1.5 times, are now serially available.<ref>{{Cite web |last=RIA News |date=November 10, 2016 |title=Юрий Набоков: гранатомет "Балкан" могут принять на вооружение в 2017 году |trans-title=Yuri Nabokov: the Balkan grenade launcher may be put into service in 2017 |url=https://ria.ru/20161110/1481076567.html |access-date=2024-04-12 |website=[[RIA Novosti]] |language=ru}}</ref>
[[File:VOG-25 7P17 - MAKS2015part7-50.jpg|thumb|Internal view of the 40mm VOG-25 (7P17) grenade from the GP-25 grenade launcher.]]
[[File:VOG-25 7P17 - MAKS2015part7-50.jpg|thumb|Internal view of the 40mm VOG-25 (7P17) grenade from the GP-25 grenade launcher.]]
Smoke grenades are also available. The original GRD-40 grenade was replaced by a series of grenades designed for use at different ranges. These are the GRD-50, GRD-100 and GRD-200 intended for use at 50, 100 and 200 meters respectively. They are capable of producing a 20 cubic meter cloud of [[smoke]] that lasts for one minute in [[wind]]s of up to five meters per second. A [[tear gas]] grenade called ''Gvozd'' ("Nail") and a stick grenade are also available.<ref name=":2" />
Smoke grenades are also available. The original GRD-40 grenade was replaced by a series of grenades designed for use at different ranges. These are the GRD-50, GRD-100 and GRD-200 intended for use at 50, 100 and 200 meters respectively. They are capable of producing a 20 cubic meter cloud of [[smoke]] that lasts for one minute in [[wind]]s of up to five meters per second. A [[tear gas]] grenade called ''Gvozd'' ("Nail") and a stick grenade are also available.<ref name=":2" />


Today it is used primarily by the [[Russian Armed Forces]] in weapons such as the GP-34, BG-15 Mukha and [[RG-6 grenade launcher|RG-6]]. Several types exist but the most common version is the default VOG-25 high-explosive version<ref name=":35">{{Cite web|last=|first=|date=2002–2006 |title=Выстрел гранатомётный ВОГ-25|url=http://worldweapon.ru/strelok/vog25.php|url-status=live|archive-url=https://web.archive.org/web/20070701163228/http://worldweapon.ru/strelok/vog25.php|archive-date=2007-07-01 |access-date=2021-02-04|website=worldweapon.ru}}</ref>  
Today it is used primarily by the [[Russian Armed Forces]] in weapons such as the GP-34, BG-15 Mukha and [[RG-6 grenade launcher|RG-6]]. Several types exist but the most common version is the default VOG-25 high-explosive version.<ref name=":35">{{Cite web|last=|first=|date=2002–2006 |title=Выстрел гранатомётный ВОГ-25|url=http://worldweapon.ru/strelok/vog25.php|url-status=live|archive-url=https://web.archive.org/web/20070701163228/http://worldweapon.ru/strelok/vog25.php|archive-date=2007-07-01 |access-date=2021-02-04|website=worldweapon.ru}}</ref>  


=== Ammunition data ===
=== Ammunition data ===
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* {{flag|North Korea}}<ref name="jones2009">Jones, Richard D. ''Jane's Infantry Weapons 2009/2010''. Jane's Information Group; 35 edition (January 27, 2009). {{ISBN|978-0-7106-2869-5}}.</ref><ref>{{Cite journal |last=US Department of Defense |date=May 1997 |title=North Korea Country Handbook |url=https://nuke.fas.org/guide/dprk/nkor.pdf |url-status=live |journal=Marine Corps Intelligence Activity |language=en |pages=A-76 (248) |archive-url=https://web.archive.org/web/20160304111733/http://fas.org/nuke/guide/dprk/nkor.pdf |archive-date=2016-03-04}}</ref>
* {{flag|North Korea}}<ref name="jones2009">Jones, Richard D. ''Jane's Infantry Weapons 2009/2010''. Jane's Information Group; 35 edition (January 27, 2009). {{ISBN|978-0-7106-2869-5}}.</ref><ref>{{Cite journal |last=US Department of Defense |date=May 1997 |title=North Korea Country Handbook |url=https://nuke.fas.org/guide/dprk/nkor.pdf |url-status=live |journal=Marine Corps Intelligence Activity |language=en |pages=A-76 (248) |archive-url=https://web.archive.org/web/20160304111733/http://fas.org/nuke/guide/dprk/nkor.pdf |archive-date=2016-03-04}}</ref>
* {{flag|Pakistan}}{{Citation needed|date=October 2019}}
* {{flag|Pakistan}}{{Citation needed|date=October 2019}}
* {{flag|Russia}}<ref name="jones2009"/>
* {{flag|Russia}}<ref name="jones2009"/><ref>* {{cite web | title=«Калашников» выполнил государственный заказ на изготовление подствольного гранатомета ГП-34, активно используемого в зоне СВО | url=https://kalashnikovgroup.ru/news/kalashnikov-_vypolnil_gosudarstvennyy_zakaz_na_izgotovlenie_podstvolnogo_granatometa_gp-34-_aktivno_ | ref={{sfnref|..}} | access-date=2025-12-09}}</ref>
* {{flag|Serbia}}: Made under license by [[Zastava Arms]] as the PBG – 40&nbsp;mm<ref>{{cite web |author=Zastava Arms |title=Underbarrel grenade launcher PBG-40 mm |url=http://www.zastava-arms.rs/en/militaryproduct/underbarrel-grenade-launcher-pbg-40-mm |url-status=live |archive-url=https://web.archive.org/web/20141027220013/http://www.zastava-arms.rs/en/militaryproduct/underbarrel-grenade-launcher-pbg-40-mm |archive-date=2014-10-27 |access-date=2024-04-12 |website=Zastava Arms |language=en}}</ref> and the PBG 40&nbsp;mm M70.<ref>{{cite web |author=Zastava Arms |title=Underbarrel grenade launcher PBG 40 mm M70 |url=http://www.zastava-arms.rs/en/militaryproduct/bgp-40-mm-m70 |url-status=live |archive-url=https://web.archive.org/web/20141028205343/http://www.zastava-arms.rs/en/militaryproduct/bgp-40-mm-m70 |archive-date=October 28, 2014 |access-date=2024-04-12 |website=Zastava Arms |language=en}}</ref>
* {{flag|Serbia}}: Made under license by [[Zastava Arms]] as the PBG – 40&nbsp;mm<ref>{{cite web |author=Zastava Arms |title=Underbarrel grenade launcher PBG-40 mm |url=http://www.zastava-arms.rs/en/militaryproduct/underbarrel-grenade-launcher-pbg-40-mm |url-status=live |archive-url=https://web.archive.org/web/20141027220013/http://www.zastava-arms.rs/en/militaryproduct/underbarrel-grenade-launcher-pbg-40-mm |archive-date=2014-10-27 |access-date=2024-04-12 |website=Zastava Arms |language=en}}</ref> and the PBG 40&nbsp;mm M70.<ref>{{cite web |author=Zastava Arms |title=Underbarrel grenade launcher PBG 40 mm M70 |url=http://www.zastava-arms.rs/en/militaryproduct/bgp-40-mm-m70 |url-status=live |archive-url=https://web.archive.org/web/20141028205343/http://www.zastava-arms.rs/en/militaryproduct/bgp-40-mm-m70 |archive-date=October 28, 2014 |access-date=2024-04-12 |website=Zastava Arms |language=en}}</ref>
* {{flag|North Macedonia}}
* {{flag|North Macedonia}}

Latest revision as of 17:25, 9 December 2025

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The GP-25 Kostyor ("Bonfire"), GP-30 Obuvka ("Shoe") and GP-34 are a family of Russian 40 mm under-barrel muzzleloaded grenade launchers for the AK family of assault rifles.[1] The acronym GP stands for Granatomyot Podstvolnyj,[1] "under-barrel grenade launcher" in Russian, and was adopted by Soviet forces in 1978.

Development

Script error: No such module "Multiple image". The development of a grenade launcher for the AKM assault rifle began in 1966 at the Central Design and Research Bureau of Sporting and Hunting Arms (TsKIB SOO). Development continued into the 1970s, and in 1978 it was accepted into service.[1] The main production version was known as the GP-25, and could be attached to the AKM and AK-74 assault rifles. The GP-30 was made lighter and the aiming system was redesigned and moved to the right.[2]

GP grenade launchers are similar in appearance and fire the same Russian 40mm caliber ammunition. At the top of the barrel is the mounting hardware to attach the weapon to the underside of a rifle barrel, from which it is designed to fire. The GP barrel has a useful life of about 400 rounds.[3]

The GP-30 first entered service in 1989,[1] and is intended for use with the AK-100 series of assault rifles. The GP-30M is a grenade launcher of simplified model, consisting of a shorter 40 mm rifled barrel in front of a basic trigger mechanism with minimal hand grip.

The current Izhmash-made version, the GP-34, has a further-redesigned sighting system located to the right side of the weapon and features the following advantages:

  • Reliability: It is designed and tested specifically for the Kalashnikov assault rifles, fits such assault rifles directly without any adaptors or hand guard dismantling.[4]
  • Improved safety: The design prevents a round from moving within or falling out of the barrel, even if the muzzle is pointed down. The GP-34 features an additional mechanism (firing pin safety lever) to improve safety during loading.[4]

Variants

  • ГП-25 (GP-25), GRAU index: 6Г15 (6G15), nickname «Костёр» (Kostyor, "Bonfire")
  • ГП-30 (GP-30), GRAU index: 6Г21 (6G21), nickname «Обувка» (Obuvka, "Shoe")
  • ГП-34 (GP-34), GRAU index: 6Г34 (6G34)

Use

File:45thOBrSpN 17.jpg
Spetsnaz with GP grenade launcher under an AKM rifle, 45th Spetsnaz Brigade.

A grenade is first loaded from the muzzle, the weapon is aimed, and then the double-action trigger is pulled to fire. This fires the percussion cap at the base of the grenade which activates the nitrocellulose propellant inside the grenade body.[5] The hot, expanding gas from the propellant is forced through openings in the base of the grenade that move it along the barrel and, at the same time, force the driving band to fit into the twelve grooves of the rifle. The rifling provides stabilizing rotation to the projectile.[5] The grenade has a range of up to 400m.[6]

Ammunition

File:10th Mountain Division, Afghan National Army, Afghan Border Patrol Service Members Patrol Khas Kunar District DVIDS187644.jpg
An Afghan National Army soldier armed with a GP-25/30 on patrol in Kunar province, Khas Kunar district of Afghanistan, July 1, 2009.

GP grenade launchers fire multiple 40mm VOG-25 high-explosive fragmentation grenades, with a total range of 400 m and an effective range of 150 m.[1][2] These Russian-Soviet 40 mm grenades are not compatible with Western 40x46 mm grenades.[1] Originally, the main grenade was the VOG-15 (7P17) fragmentation grenade, which has a lethal radius of six meters. Ammunition for the muzzle-loading GP-25 consists of a single piece containing propellant and charge, as opposed to the more traditional two-piece case and projectile design of comparable US 40x46mm ammunition used in breech-loading grenade launchers, such as the M203. This integral "caseless" design – with the propellant and primer contained in the base of the grenade – provides for when the grenade is fired nothing is left in the barrel, so the operator can load the next grenade.[2]

A bouncing grenade, the VOG-25P, is also available. On impact, a small charge in the nose of the grenade explodes; this raises the grenade 50 cm to 1.5 m in the air, before an impact delay fuse causes it to detonate.[2] The VOG-25P also has a lethal radius of six meters. The new generation VOG-M and VOG-PM ammunition, with an increased effectiveness of no less than 1.5 times, are now serially available.[7]

File:VOG-25 7P17 - MAKS2015part7-50.jpg
Internal view of the 40mm VOG-25 (7P17) grenade from the GP-25 grenade launcher.

Smoke grenades are also available. The original GRD-40 grenade was replaced by a series of grenades designed for use at different ranges. These are the GRD-50, GRD-100 and GRD-200 intended for use at 50, 100 and 200 meters respectively. They are capable of producing a 20 cubic meter cloud of smoke that lasts for one minute in winds of up to five meters per second. A tear gas grenade called Gvozd ("Nail") and a stick grenade are also available.[5]

Today it is used primarily by the Russian Armed Forces in weapons such as the GP-34, BG-15 Mukha and RG-6. Several types exist but the most common version is the default VOG-25 high-explosive version.[8]

Ammunition data

Version Fuse arming range Fuse self-destruction time Weight Charge
VOG-25 10–40 m (33–130 ft) 14–19 s 250 g (0.55 lb) 48 g of A-IX-1 explosive
VOG-25P 10–40 m (33–130 ft) 14–19 s 278 g (0.61 lb) 37 g of TNT
GRD-50/100/200 10–40 m (33–130 ft) 14–19 s 265 g 90 g

Users

File:GP 25-30 40mm Grenade Launcher on AK-74 Western Group Forces Ranges Zossen-Wuensdorf 1992 (4986660863).jpg
A group of British officers participating in a Russian field day at the WGF HQ camp in Zossen-Wuensdorf, Germany, 1992. Here Colonel Pugachov, CO 69th Guards Motor Rifle Regiment, is preparing a British officer for firing the GP 25/30 grenade launcher mounted on an AK-74.

See also

References

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Bibliography

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External links

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Template:Caseless Firearms