GP-25 (English Wikipedia)

Arsenal Corporation. "Arsenal 40 mm Underbarrel Grenade Launcher UBGL". Arsenal BG. Archived from the original on 8 October 2014. Retrieved 2024-04-12.
Arsenal Corporation. "Arsenal 40 mm Underbarrel Grenade Launcher UBGL-1". Arsenal BG. Archived from the original on 29 November 2014. Retrieved 2024-04-12.

bellingcat.com

Mitzer, Stijn; Oliemans, Joost (2015-02-19). "From Russia with Love, Syria's AK-74Ms". Oryx. Archived from the original on 2019-02-06. Retrieved 2024-04-12.

books.google.com

Rottman, Gordon L. (2011). The AK-47: Kalashnikov-series assault rifles. Weapon 8. Oxford: Osprey Publishing. p. 28. ISBN 978-1-84908-835-0. OCLC 651902408.

conflictfreelance.rs

Bagas, Marc (2020-09-06). "Guns of Nusantara: The AK-101 and 102 in BRIMOB Service". Conflict Freelancers. Archived from the original on 2021-05-23. Retrieved 2024-04-12.

crisisgroup.org

blog.crisisgroup.org

Vircoulon, Thierry (2015-10-02). "Insights from the Burundian Crisis (I): An Army Divided and Losing its Way". International Crisis Group. Archived from the original on 2017-05-21. Retrieved 2024-04-12.

delta.gov.ge

Chiteishvili, Otar. "40 mm under barrel grenade launcher GP-25". STC Delta. Archived from the original on 2015-06-13. Retrieved 2024-04-12.

fas.org

nuke.fas.org

US Department of Defense (May 1997). "North Korea Country Handbook" (PDF). Marine Corps Intelligence Activity: A-76 (248). Archived (PDF) from the original on 2016-03-04.

izhmash.ru

"Официальный сайт группы предприятий "ИЖМАШ"". Archived from the original on 2012-07-28. Retrieved 2012-10-20. |Izhmash GP-34 Specifications
"40 mm underbarrel grenade launcher GP-34". Izmash. Archived from the original on 2012-07-28. Retrieved 2024-04-12.

kam.lt

kariuomene.kam.lt

"Lietuvos kariuomenė :: Ginkluotė ir karinė technika » Granatsvaidžiai ir prieštankiniai ginklai". Archived from the original on 9 November 2014. Retrieved 15 November 2014.

militaryfactory.com

"GP-25 / GP-30 GL Single-Shot 40mm Muzzle-Loaded Grenade Launcher Specifications and Pictures". Military Factory. Retrieved 2024-04-13.

militarytoday.com

"GP-25 Kostyer: 40 mm underbarrel grenade launcher". Military Today. Retrieved 2024-04-12.

mod.gov.ge

Ministry of Defense of Georgia. "Industrial Parade". Ministry of Defense of Georgia. Archived from the original on 2014-01-07. Retrieved 2024-04-12.

modernfirearms.net

Popenker, Maxim (2010-10-28). "GP-25 and GP-30". Modern Firearms. Retrieved 2024-04-12.

ria.ru

RIA News (2016-11-10). "Юрий Набоков: гранатомет "Балкан" могут принять на вооружение в 2017 году" [Yuri Nabokov: the Balkan grenade launcher may be put into service in 2017]. RIA Novosti (in Russian). Retrieved 2024-04-12.

sites.google.com

Tiger, Grey. "World Infantry Weapons: Botswana". World Inventory. Archived from the original on 2016-11-24. Retrieved 2024-04-12.

web.archive.org

"Ukraine War 1 Hour of Amazing Firefights". YouTube. Archived from the original on 2018-10-18. Retrieved 2017-09-14.
"Официальный сайт группы предприятий "ИЖМАШ"". Archived from the original on 2012-07-28. Retrieved 2012-10-20. |Izhmash GP-34 Specifications
"40 mm underbarrel grenade launcher GP-34". Izmash. Archived from the original on 2012-07-28. Retrieved 2024-04-12.
Tiger, Grey. "World Infantry Weapons: Botswana". World Inventory. Archived from the original on 2016-11-24. Retrieved 2024-04-12.
Arsenal Corporation. "Arsenal 40 mm Underbarrel Grenade Launcher UBGL". Arsenal BG. Archived from the original on 8 October 2014. Retrieved 2024-04-12.
Arsenal Corporation. "Arsenal 40 mm Underbarrel Grenade Launcher UBGL-1". Arsenal BG. Archived from the original on 29 November 2014. Retrieved 2024-04-12.
Vircoulon, Thierry (2015-10-02). "Insights from the Burundian Crisis (I): An Army Divided and Losing its Way". International Crisis Group. Archived from the original on 2017-05-21. Retrieved 2024-04-12.
Chiteishvili, Otar. "40 mm under barrel grenade launcher GP-25". STC Delta. Archived from the original on 2015-06-13. Retrieved 2024-04-12.
Ministry of Defense of Georgia. "Industrial Parade". Ministry of Defense of Georgia. Archived from the original on 2014-01-07. Retrieved 2024-04-12.
Bagas, Marc (2020-09-06). "Guns of Nusantara: The AK-101 and 102 in BRIMOB Service". Conflict Freelancers. Archived from the original on 2021-05-23. Retrieved 2024-04-12.
"Lietuvos kariuomenė :: Ginkluotė ir karinė technika » Granatsvaidžiai ir prieštankiniai ginklai". Archived from the original on 9 November 2014. Retrieved 15 November 2014.
US Department of Defense (May 1997). "North Korea Country Handbook" (PDF). Marine Corps Intelligence Activity: A-76 (248). Archived (PDF) from the original on 2016-03-04.
Zastava Arms. "Underbarrel grenade launcher PBG-40 mm". Zastava Arms. Archived from the original on 2014-10-27. Retrieved 2024-04-12.
Zastava Arms. "Underbarrel grenade launcher PBG 40 mm M70". Zastava Arms. Archived from the original on 28 October 2014. Retrieved 2024-04-12.
Mitzer, Stijn; Oliemans, Joost (2015-02-19). "From Russia with Love, Syria's AK-74Ms". Oryx. Archived from the original on 2019-02-06. Retrieved 2024-04-12.

worldcat.org

Rottman, Gordon L. (2011). The AK-47: Kalashnikov-series assault rifles. Weapon 8. Oxford: Osprey Publishing. p. 28. ISBN 978-1-84908-835-0. OCLC 651902408.

youtube.com

"Ukraine War 1 Hour of Amazing Firefights". YouTube. Archived from the original on 2018-10-18. Retrieved 2017-09-14.

zastava-arms.rs

Zastava Arms. "Underbarrel grenade launcher PBG-40 mm". Zastava Arms. Archived from the original on 2014-10-27. Retrieved 2024-04-12.
Zastava Arms. "Underbarrel grenade launcher PBG 40 mm M70". Zastava Arms. Archived from the original on 28 October 2014. Retrieved 2024-04-12.