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{{Short description|Argentine submachine gun}}
⚫ The '''Pistola Ametralladora PAM submachine gun''', often shortened as the '''PAM submachine gun,''' is a series of two ] ] (the PAM-1 and PAM-2) that were licensed variants of the ] ]. The main difference between the PAM series and the M3A1 was that the PAM was chambered in ] instead of the M3's ]. The PAM-1 began production in 1955 and remained in service with the ] through the ] and the 90s before being mostly removed from service and sold on the civilian market. The PAM-2 was an improved version of the PAM-1 that mostly addressed the inadequate safety originating from the original M3.<ref name=":0">{{Cite web |date=February 24, 2023 |title=Pistola Ametralladora P.A.M.: The Argentine Grease Gun – Small Arms Defense Journal |url=https://sadefensejournal.com/pistola-ametralladora-p-a-m-the-argentine-grease-gun/ |access-date=2024-12-26 |website=Small Arms Defense Journal |language=en-US}}</ref>
{{Orphan|date=December 2024}}

⚫ The '''Pistola Ametralladora PAM submachine gun''', often shortened as the '''PAM submachine gun,''' is a series of two ] ]s (the PAM-1 and PAM-2) that were licensed variants of the ] ]. The main difference between the PAM series and the M3A1 was that the PAM was chambered in ] instead of the M3's ]. The PAM-1 began production in 1955 and remained in service with the ] through the ] and the 90s before being mostly removed from service and sold on the civilian market. The PAM-2 was an improved version of the PAM-1 that mostly addressed the inadequate safety originating from the original M3.<ref name=":0">{{Cite web |date=February 24, 2023 |title=Pistola Ametralladora P.A.M.: The Argentine Grease Gun – Small Arms Defense Journal |url=https://sadefensejournal.com/pistola-ametralladora-p-a-m-the-argentine-grease-gun/ |access-date=2024-12-26 |website=Small Arms Defense Journal |language=en-US}}</ref>


== Development and Production == == Development and Production ==


===== PAM-1 ===== ===== PAM-1 =====
In October 1950, Argentine Military in ], Argentina, members of the ] (EA) recieved a demonstration of the M3's capabilities. By 1954, they would acquire a license to produce a copy of the M3A1 at the ''Fábrica Militar de Armas Portátiles'' (FMAP) factory in Rosario, however this license somehow didn't include instructions or production designs on how to produce the weapon. To get around this hurdle, they enlisted the help of an ] gunsmith by the name of Eduardo Sustercic who had previously worked in a gun factory in ], Italy. With his assistance they ] available designs of the M3A1 to create production drawings for their own use.<ref name=":0" /><ref>{{Cite web |last=Olive |first=Ronaldo |date=2017-04-25 |title=P.A.M.1 and P.A.M.2: Argentina's |url=https://www.thefirearmblog.com/blog/2017/04/25/p-m-1-p-m-2-argentinas-grease-guns/ |access-date=2024-12-27 |website=thefirearmblog.com |language=en}}</ref> This first design would become known as the PAM-1. In October 1950, Argentine Military in ], Argentina, members of the ] (EA) received a demonstration of the M3's capabilities. By 1954, they would acquire a license to produce a copy of the M3A1 at the ''Fábrica Militar de Armas Portátiles'' (FMAP) factory in Rosario, however this license somehow didn't include instructions or production designs on how to produce the weapon. To get around this hurdle, they enlisted the help of an ] gunsmith by the name of Eduardo Sustercic who had previously worked in a gun factory in ], Italy. With his assistance they ] available designs of the M3A1 to create production drawings for their own use.<ref name=":0" /><ref>{{Cite web |last=Olive |first=Ronaldo |date=2017-04-25 |title=P.A.M.1 and P.A.M.2: Argentina's |url=https://www.thefirearmblog.com/blog/2017/04/25/p-m-1-p-m-2-argentinas-grease-guns/ |access-date=2024-12-27 |website=thefirearmblog.com |language=en}}</ref> This first design would become known as the PAM-1.


===== '''PAM-2''' ===== ===== PAM-2 =====
In 1961, engineers at FMAP created a design to fix the inadequate ] also found in the M3A1. Both guns had no way to mechanically disable the trigger, and instead relied on a protrusion on the bottom of the dust cover to lock into place and prevent the gun's bolt from engaging. However, dropping the gun could potentially dent the dust cover and prevent the safety from engaging entirely, causing mutiple fatalities and injuries during the M3's service in the ]. The solution implemented on the new PAM variant (the PAM-2) was retro-fitting a lever in place behind the magazine that would prevent the dust cover from leaving the bolt unless the lever was depressed.<ref>{{Cite web |title=Argentine PAM1 9 mm sub machine gun, 1982 {{!}} Online Collection {{!}} National Army Museum, London |url=https://collection.nam.ac.uk/detail.php?acc=1984-06-140-1 |access-date=2024-12-27 |website=collection.nam.ac.uk}}</ref><ref>{{Cite web |last=Mendez |first=Rolando |date=2011-05-13 |title=Armas Livianas de la Infantería en Malvinas |trans-title=Light Weapons of the Infantry in Malvinas |url=https://web.archive.org/web/20110513080639/http://www.fullaventura.com/eqmilitar/nota104168.php |archive-url=https://web.archive.org/web/20110810055053/http://www.fullaventura.com/eqmilitar/nota104168.php |archive-date=August 10, 2011 |access-date=2024-12-27 |website=Full Aventura |language=es}}</ref> Out of a sample of 34,636 units of the PAM-1, 16,544 would be converted to the PAM-2 by adding this lever. However, this upgrade came at a time when the production of the PAM was slowing down in favor of the newly-adopted ] (and later the ] ]), so only around 1100 new units of the PAM-2 would be produced.<ref>{{Cite book |last=Ezell |first=Edward Clinton |url=https://archive.org/details/smallarmsofworld0000ezel/mode/2up?q=%22PAM-1%22 |title=Small arms of the World: a Basic Manual of Small Arms |date= |publisher=New York : Barnes & Noble |others=Internet Archive |year=1993 |isbn=978-0-88029-601-4 |pages=199}}</ref><ref name=":1">{{Cite book |last=Thompson |first=Leroy |title=The M3 Grease Gun |date= |publisher=Osprey Publishing |others=Illustrated by Adam Hook and Alan Gilliland |year=2016 |isbn=978 1 4728 1107 3 |publication-place=Great Britain |page=75}}</ref> In 1961, engineers at FMAP created a design to fix the inadequate ] also found in the M3A1. Both guns had no way to mechanically disable the trigger, and instead relied on a protrusion on the bottom of the dust cover to lock into place and prevent the gun's bolt from engaging. However, dropping the gun could potentially dent the dust cover and prevent the safety from engaging entirely, causing mutiple fatalities and injuries during the M3's service in the ]. The solution implemented on the new PAM variant (the PAM-2) was retro-fitting a lever in place behind the magazine that would prevent the dust cover from leaving the bolt unless the lever was depressed.<ref>{{Cite web |title=Argentine PAM1 9 mm sub machine gun, 1982 {{!}} Online Collection {{!}} National Army Museum, London |url=https://collection.nam.ac.uk/detail.php?acc=1984-06-140-1 |access-date=2024-12-27 |website=collection.nam.ac.uk}}</ref><ref>{{Cite web |last=Mendez |first=Rolando |date=2011-05-13 |title=Armas Livianas de la Infantería en Malvinas |trans-title=Light Weapons of the Infantry in Malvinas |url=https://web.archive.org/web/20110513080639/http://www.fullaventura.com/eqmilitar/nota104168.php |archive-url=https://web.archive.org/web/20110810055053/http://www.fullaventura.com/eqmilitar/nota104168.php |archive-date=August 10, 2011 |access-date=2024-12-27 |website=Full Aventura |language=es}}</ref> Out of a sample of 34,636 units of the PAM-1, 16,544 would be converted to the PAM-2 by adding this lever. However, this upgrade came at a time when the production of the PAM was slowing down in favor of the newly adopted ] (and later the ] ]), so only around 1100 new units of the PAM-2 would be produced.<ref>{{Cite book |last=Ezell |first=Edward Clinton |url=https://archive.org/details/smallarmsofworld0000ezel/mode/2up?q=%22PAM-1%22 |title=Small arms of the World: a Basic Manual of Small Arms |date= |publisher=New York : Barnes & Noble |others=Internet Archive |year=1993 |isbn=978-0-88029-601-4 |pages=199}}</ref><ref name=":1">{{Cite book |last=Thompson |first=Leroy |title=The M3 Grease Gun |date= |publisher=Osprey Publishing |others=Illustrated by Adam Hook and Alan Gilliland |year=2016 |isbn=978 1 4728 1107 3 |publication-place=Great Britain |page=75}}</ref>


During its period of production between 1955 and 1972, a total of 47,000 units of the PAM-1 and PAM-2 were produced.<ref name=":1" /> During its period of production between 1955 and 1972, a total of 47,000 units of the PAM-1 and PAM-2 were produced.<ref name=":1" />
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== References == == References ==
{{Reflist}} {{Reflist}}

]
{{improve categories|date=December 2024}}

Revision as of 06:11, 27 December 2024

Argentine submachine gun
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The Pistola Ametralladora PAM submachine gun, often shortened as the PAM submachine gun, is a series of two Argentine submachine guns (the PAM-1 and PAM-2) that were licensed variants of the American M3A1 'Grease Gun'. The main difference between the PAM series and the M3A1 was that the PAM was chambered in 9×19mm Parabellum instead of the M3's .45 ACP. The PAM-1 began production in 1955 and remained in service with the Argentine Armed Forces through the Falklands War and the 90s before being mostly removed from service and sold on the civilian market. The PAM-2 was an improved version of the PAM-1 that mostly addressed the inadequate safety originating from the original M3.

Development and Production

PAM-1

In October 1950, Argentine Military in Rosario, Argentina, members of the Argentine Army (EA) received a demonstration of the M3's capabilities. By 1954, they would acquire a license to produce a copy of the M3A1 at the Fábrica Militar de Armas Portátiles (FMAP) factory in Rosario, however this license somehow didn't include instructions or production designs on how to produce the weapon. To get around this hurdle, they enlisted the help of an Italian gunsmith by the name of Eduardo Sustercic who had previously worked in a gun factory in Brescia, Italy. With his assistance they reverse-engineered available designs of the M3A1 to create production drawings for their own use. This first design would become known as the PAM-1.

PAM-2

In 1961, engineers at FMAP created a design to fix the inadequate safety also found in the M3A1. Both guns had no way to mechanically disable the trigger, and instead relied on a protrusion on the bottom of the dust cover to lock into place and prevent the gun's bolt from engaging. However, dropping the gun could potentially dent the dust cover and prevent the safety from engaging entirely, causing mutiple fatalities and injuries during the M3's service in the U.S. Army. The solution implemented on the new PAM variant (the PAM-2) was retro-fitting a lever in place behind the magazine that would prevent the dust cover from leaving the bolt unless the lever was depressed. Out of a sample of 34,636 units of the PAM-1, 16,544 would be converted to the PAM-2 by adding this lever. However, this upgrade came at a time when the production of the PAM was slowing down in favor of the newly adopted FMK-3 (and later the Belgian FN FAL), so only around 1100 new units of the PAM-2 would be produced.

During its period of production between 1955 and 1972, a total of 47,000 units of the PAM-1 and PAM-2 were produced.

References

  1. ^ "Pistola Ametralladora P.A.M.: The Argentine Grease Gun – Small Arms Defense Journal". Small Arms Defense Journal. February 24, 2023. Retrieved 2024-12-26.
  2. Olive, Ronaldo (2017-04-25). "P.A.M.1 and P.A.M.2: Argentina's". thefirearmblog.com. Retrieved 2024-12-27.
  3. "Argentine PAM1 9 mm sub machine gun, 1982 | Online Collection | National Army Museum, London". collection.nam.ac.uk. Retrieved 2024-12-27.
  4. Mendez, Rolando (2011-05-13). "Armas Livianas de la Infantería en Malvinas" [Light Weapons of the Infantry in Malvinas]. Full Aventura (in Spanish). Archived from the original on August 10, 2011. Retrieved 2024-12-27.
  5. Ezell, Edward Clinton (1993). Small arms of the World: a Basic Manual of Small Arms. Internet Archive. New York : Barnes & Noble. p. 199. ISBN 978-0-88029-601-4.
  6. ^ Thompson, Leroy (2016). The M3 Grease Gun. Illustrated by Adam Hook and Alan Gilliland. Great Britain: Osprey Publishing. p. 75. ISBN 978 1 4728 1107 3.
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