Redigerer M1 Karabin (avsnitt)

=== Koreakrigen ===
Under [[Koreakrigen]] erstattet M2 karabinen i stor grad maskinpistolen i amerikanske styrker og ble den mest brukte karabinvarianten,<ref name="Canfield">{{cite magazine|author1=Canfield, Bruce|url=http://www.americanrifleman.org/articles/arms-chosin-few/|title=Arms of the Chosin Few|magazine=American Rifleman|date=2. november 2010|access-date=10 May 2011|archive-url=https://web.archive.org/web/20230316143904/https://www.americanrifleman.org/articles/arms-chosin-few/|archive-date=16 March 2023}}</ref> selv om halvautomatiske M1 også ble mye brukt, særlig blant støttetropper.<ref name="The M16 2011. page 6">{{cite book|url=https://ospreypublishing.com/the-m16|title=The M16|author1=Rottman, Gordon L.|publisher=Osprey Publishing|date=20. desember 2011|page=6}}</ref><ref name="Dill">{{cite book|url=https://www.americanheritage.com/winter-yalu|author1=Dill, James|title=Winter of the Yalu|publisher=Changjin Journal|date=desember 1982|quote=A soldier remembers the freezing, fearful retreat down the Korean Peninsula after the Chinese armies smashed across the border|archive-url=https://web.archive.org/web/20230407083459/https://www.americanheritage.com/winter-yalu|archive-date=7. april 2023}}</ref><ref name="Hammel_Chosin">{{cite book|author1=Hammel, Eric|title=Chosin: Heroic Ordeal of the Korean War|publisher=Presidio Press|edition=1st|isbn=978-0-7603-3154-5|date=1. mars 1990|page=205}}</ref> Karabinen fikk imidlertid et rykte for å låse seg i sterk kulde, noe som ble sporet til svake returfjærer, frosne deler på grunn av tykk olje og redusert rekylkraft ved lave temperaturer.<ref name="S.L.A. Marshall, 1951">{{cite book|author1=S.L.A. Marshall|title=Commentary on Infantry and Weapons in Korea 1950–51, 1st Report ORO-R-13 of 27 October 1951, ''Project Doughboy'' [Restricted]|publisher=Operations Research Office (ORO), U.S. Army}}</ref><ref name="Clavin">{{cite book|author1=Clavin, Tom|author2=Drury, Bob|title=Last Stand of Fox Company: A True Story of U.S. Marines in Combat|url=https://archive.org/details/laststandoffoxco00bobd|location=New York|publisher=Atlantic Monthly Press|isbn=978-0-87113-993-1|date=2009|pages=[https://archive.org/details/laststandoffoxco00bobd/page/n105 82],113,161|quote=In addition to their bulky cotton-padded ''telegroika'' coats, which could freeze solid with perspiration, Chicom infantry frequently wore vests or undercoats of thick goatskin.}}</ref>

Soldater klaget også på at karabinens kuler ofte ikke stoppet tungt påkledde eller utstyrsladede nordkoreanske og kinesiske soldater, selv på kloss hold.<ref name="O'Donnell_Korean">{{cite book|author1=O'Donnell, Patrick K.|title=Give Me Tomorrow: The Korean War's Greatest Untold Story: The Epic Stand of the Marines of George Company|publisher=Da Capo Press|edition=1st|isbn=978-0-306-81801-1|date=2. november 2010|pages=88,168,173}}</ref><ref name="Jowett">{{cite book|author1=Jowett, Philip S.|url=https://ospreypublishing.com/the-chinese-army-1937-49-pb|title=The Chinese Army 1937–49: World War II and Civil War|publisher=Osprey Publishing|isbn=978-1-84176-904-2|date=10. juli 2005|page=47}}</ref> I noen tilfeller beordret marinesoldater fra 1st Marine Division karabinskyttere til å sikte mot hodet.<ref name="Clavin2">{{cite book|author1=Clavin, Tom|author2=Drury, Bob|title=Last Stand of Fox Company: A True Story of U.S. Marines in Combat|url=https://archive.org/details/laststandoffoxco00bobd|location=New York|publisher=Atlantic Monthly Press|isbn=978-0-87113-993-1|date=2009|pages=[https://archive.org/details/laststandoffoxco00bobd/page/n105 82],113,161|quote=In addition to their bulky cotton-padded ''telegroika'' coats, which could freeze solid with perspiration, Chicom infantry frequently wore vests or undercoats of thick goatskin.}}</ref><ref name="O'Donnell_Korean" /> Selv fiendtlige soldater som brukte erobrede karabiner mislikte våpenet av samme grunn.<ref name="Spurr">{{cite book|author1=Spurr, Russell|title=Enter the Dragon: China's Undeclared War Against the U.S. in Korea, 1950–51|url=https://www.abebooks.com/first-edition/Enter-Dragon-Chinas-Undeclared-Against-Korea/15445827432/bd|location=New York, NY|publisher=Newmarket Press|isbn=978-1-55704-914-8|date=1988|page=182|quote=Chinese frontline PLA troops disliked the M1/M2 carbine, as they believed its cartridge had inadequate stopping power. Captured U.S. carbines were instead issued to runners and mortar crews}}</ref>

En offisiell evaluering fra 1951 rapporterte at det var få bevis for karabinens treffsikkerhet over 50 meter, og at 95 % av drapene med karabinen skjedde på kortere avstand. Evalueringen nevnte også at soldatene ofte sløste ammunisjon i kamp før de lærte å bruke den automatisk ild-funksjonen fornuftig, noe som krevde erfaring og kamptrening.<ref name="S.L.A. Marshall, 1951" />

Til tross for sitt blandede rykte, gjorde M2 karbinens ildkraft den ofte til det foretrukne våpenet når det kom til nattpatruljer i Korea.<ref name="S.L.A. Marshall, 1951" />