View source for MAC-11

{{short description|American machine pistol}}
{{Infobox weapon
| name               = Military Armaments Corporation M11
| image              = File:Flickr - ~Steve Z~ - Cobray M11.jpg
| image_size         = 300px
| alt                = 
| caption            = A Cobray M-11/NINE, a variant of the MAC-11
| origin             = United States
| type               = [[Machine pistol]]<br>[[Submachine gun]]
<!-- Type selection -->
| is_ranged          = Yes
| is_bladed          = 
| is_explosive       = 
| is_artillery       = 
| is_vehicle         = 
| is_missile         = 
| is_UK              = 
<!-- Service history -->
| service            = 1972–present
| used_by            = See ''[[MAC-11#Users|Users]]''
| wars               = [[Lebanese Civil War]]
<!-- Production history -->
| designer           = [[Gordon Ingram]]<ref name="Hogg"/>
| design_date        = 1972 <br>
A prototype was in development in 1964 and 1965
| manufacturer       = {{plainlist|
* [[Military Armament Corporation]]
* [[Cobray|Cobray Company]]
* RPB
* SWD Inc.
* Jersey Arms
* Leinad
* MasterPiece Arms
}}
| unit_cost          = 
| production_date    = 1972–present
| number             = 
| variants           = MAC-11A1<br />MAC-11/9
<!-- General specifications -->
| spec_label         = 
| weight             = 1.59 kg (3.50 lbs)
| length             = 248 mm (531 mm stock extended) (9.76 in/20.90 in)
| part_length        = 129 mm (5.08 in)
| width              = 
| height             = 
| diameter           = 
<!-- Ranged weapon specifications -->
| cartridge          = [[.380 ACP]] (9×17mm) <br> [[9×19mm Parabellum]]
| cartridge_weight   = 
| barrels            = 
| action             = Straight blowback
| rate               = 1200 rounds/min<ref name="Walker"/>
| velocity           = {{cvt|980|ft/s|m/s}}
| range              = * 50 meters ([[.380 ACP]])
* 70 meters ([[9×19mm Parabellum]])<ref>{{cite web |url=http://www.weapon.ge/index.php?sel=1&id=398&man=3&coun=32&cat=&l=en |title=MAC Ingram M10 / M11 (USA) |publisher=Weapon.ge – Modern Firearms Encyclopedia |access-date=11 June 2011}}</ref>
| max_range          = 
| feed               = 16 or 32-round box [[magazine (firearm)|magazine]]<ref name="Hogg">{{cite book|last = Hogg| first = Ian| title = Jane's Infantry Weapons 1989-90, 15th Edition | publisher = [[Jane's Information Group]]| year = 1989| isbn =0-7106-0889-6| page =117}}</ref><ref>{{cite web |url=http://stevespages.com/pdf/mac_10.pdf |title=Operation and Maintenance Manual: Military Armament Corporation |publisher=Military Armament Corporation|pages=2, 5, 28}}</ref>
| sights             = [[Iron sight]]s
}}

The '''Military Armament Corporation Model 11''', officially abbreviated as "'''M11'''" or "'''M-11'''", and commonly known as the '''MAC-11''', is a [[machine pistol]]/[[submachine gun]] developed by American firearm designer [[Gordon Ingram]] at the [[Military Armament Corporation]] (MAC) during the 1970s in [[Powder Springs, Georgia]], United States.<ref>CURRENT FIREARM DESIGNS AND AMMUNITION PRODUCTION METHODS DEVELOPED BY GORDON B. INGRAM 1 November 1977</ref><ref name="MacMan">{{cite book |page=103 |title=The Mac Man: Gordon B. Ingram and His Submachine Guns |author=Frank Iannamico|isbn=978-0-9823918-1-5}}</ref><ref name="Assault">{{cite book |title=Assault Weapons |author=Jack Lewis |page=76 |year=2004 |publisher=Krause}}</ref> The weapon is a sub-compact version of the Model 10 ([[MAC-10]]), and is chambered to fire the smaller [[.380 ACP]] round.<ref name="Assault"/>

This weapon is sometimes confused with the Sylvia & Wayne Daniels M-11/9, its successor the Leinad PM-11, or the Vulcan M-11-9, both of which are later variants of the MAC chambered for the [[9 mm Luger Parabellum|9 mm Parabellum]] cartridge.<ref name="Jones">{{cite book|last = Jones| first = Richard| title = Jane's Infantry Weapons 2009-2010 | publisher = Jane's Information Group| year = 2009| isbn =978-0-7106-2869-5  | pages =139}}</ref><ref name="Walker"/> Cobray also made a .380 ACP variant called the M12.<ref>{{cite book|page=[https://archive.org/details/officialgundiges0000unse/page/235 235] |title=The Gun Digest Book of Guns & Prices 2011|isbn=978-1440235436|author=Jerry Lee|year=2011|publisher=Gun Digest Books|url-access=registration|url=https://archive.org/details/officialgundiges0000unse/page/235}}</ref>

==Design==
[[File:MAC11.jpg|thumb|MAC-11 machine pistol]]

===Operation===
Like the larger M-10, the M-11 has iron sights with the rear pinhole [[Sight (device)|sight]] welded to the [[Receiver (firearms)|receiver]]. These sights are for use with the folding stock, as using them without the stock is nearly useless because of the initial jump of the weapon due to its heavy, [[Open bolt|open-bolt]] design. The M-11A1 also has two safety features which are also found on the Model 10A1. The charging handle rotates to 90 degrees to lock the bolt in the forward position thus preventing the weapon from being cocked. The second safety is a slider that is pushed forward to lock the trigger, which in turn pins the bolt to the rear (cocked) position. This prevents the weapon from discharging even when dropped, which is not uncommon with an open-bolt design.

===Performance===
The rate of fire of the M-11A1 is one of the biggest complaints about the firearm. Listed as 1,200 rounds per minute,<ref name="Walker"/> the MAC-11's high [[cyclic rate]] is able to empty the entire 32-round magazine in about two seconds, which many users view as a drawback.<ref>{{Cite news | title = Ingram MAC Model 10 / M10 and Model 11 / M11 submachine guns (USA) | publisher = Official site | url = http://world.guns.ru/smg/usa/ingram-mac-m10-and-m11-e.html }}</ref> Extreme [[trigger discipline]] is required to discharge short bursts, which are required for combat effectiveness. Without proper training, the natural tendency of the inexperienced shooter is to hold down the trigger, discharging the entire magazine, often with poor accuracy due to recoil. The rate of fire also varies depending on the weight of bullets used.{{cn|date=April 2023}} The gun also has a selector switch that allows it to fire only one round at a time in semi-automatic mode.

Noting the weapon's poor accuracy, in the 1970s International Association of Police Chiefs weapons researcher David Steele described the MAC series as "fit only for combat in a phone booth".<ref name="Lewis2011">{{cite book|author=Jack Lewis|title=Assault Weapons|url=https://books.google.com/books?id=s2AbzqChZBYC&pg=PA79|date=28 February 2011|publisher=Gun Digest Books|isbn=978-1-4402-2400-3|pages=79–}}</ref>

The M-11 is the least common version in the MAC family of firearms.{{cn|date=April 2023}}

===Sound suppressor===
[[Image:Flickr - ~Steve Z~ - Cobray M11 (1).jpg|thumb|MAC-11/9 with 32-round magazine and suppressor]]
A specific [[suppressor]] was developed for the MAC-11, which used wipes as [[Suppressor#Design and construction|baffles]], instead of the reflex baffles that [[Mitchell WerBell III]] created for the MAC-10. Though wipes are less durable than reflex baffles, they had the advantage of proving quieter for the MAC-11. The suppressor is {{convert|224|mm|in|abbr=on}} long and is covered with [[Nomex]], a heat-resistant material.<ref name="Hogg"/>

== Manufacturers ==
MAC-type submachine guns and semi-automatic pistols were first manufactured by the Military Armament Corporation, and later by RPB Inc.,<ref name="Iannamico">{{cite journal |last= Iannamico |first= Ian |title=Manufacturing History of Ingram-MAC Type Firearms |journal=Small Arms Review |publisher=Chipotle Publishing, LLC |volume=20 |issue=1 |pages= 104}}</ref> [[Cobray]] (later named Leinad, then Sylvia/Wayne Daniel Inc.), Jersey Arms, MasterPiece Arms,<ref name="Walker">{{cite book|title=Cartridges and Firearm Identification|author= Walker, Robert E. |isbn=978-1466502062|year=2012|publisher=CRC Press|pages=216, 241, 322}}</ref> and Vulcan.

==Users==
<!--READ FIRST: This section is for cited entries only. Please do not add entries to this list without a citation from a reliable source. All entries without a citation will be removed. Thank you.-->

* {{flag|Argentina}}: In 1972, 20 were acquired for police and intelligence services. A further 24 were acquired for the Army and air force in 1973.<ref>{{Cite web |date=2016-11-24 |title=wiw_sa_argentina - worldinventory |url=https://sites.google.com/site/worldinventory/wiw_sa_argentina |access-date=2023-02-28 |archive-url=https://web.archive.org/web/20161124203421/https://sites.google.com/site/worldinventory/wiw_sa_argentina |archive-date=24 November 2016 }}</ref>
* {{flag|Brazil}}: SWD M11/9 formerly used by [[GRUMEC]]<ref>{{cite book|title=Enciclopedia De Submetralhadoras|first=Ronaldo|last=Olive|page=272}}</ref> 
* {{flag|Colombia
}}: 25 acquired by police forces in the 1970s<ref>{{Cite web |date=2016-03-12 |title=wiw_sa_colombia - worldinventory |url=https://sites.google.com/site/worldinventory/wiw_sa_colombia |access-date=2023-03-14 |archive-url=https://web.archive.org/web/20160312062339/https://sites.google.com/site/worldinventory/wiw_sa_colombia |archive-date=12 March 2016 }}</ref> 
* {{flag|Chile}}: Cobray M11/9 formerly used by special forces<ref>{{Cite web |date=2015-05-18 |title=wiw_sa_chile - worldinventory |url=https://sites.google.com/site/worldinventory/wiw_sa_chile |access-date=2023-03-14 |archive-url=https://web.archive.org/web/20150518231807/https://sites.google.com/site/worldinventory/wiw_sa_chile |archive-date=18 May 2015 }}</ref> 
* {{flag|Dominican Republic}}<ref>{{Cite web |date=2016-11-24 |title=wiw_sa_dominicanrepublic - worldinventory |url=https://sites.google.com/site/worldinventory/wiw_sa_dominicanrepublic |access-date=2023-03-14 |archive-url=https://web.archive.org/web/20161124203428/https://sites.google.com/site/worldinventory/wiw_sa_dominicanrepublic |archive-date=24 November 2016 }}</ref> 
* {{flag|Guatemala}}: 135 acquired for police forces in 1973<ref>{{Cite web |date=2016-11-24 |title=wiw_sa_guatemala - worldinventory |url=https://sites.google.com/site/worldinventory/wiw_sa_guatemala |access-date=2023-03-14 |archive-url=https://web.archive.org/web/20161124203356/https://sites.google.com/site/worldinventory/wiw_sa_guatemala |archive-date=24 November 2016 }}</ref>
* {{flag|Haiti}}<ref>{{Cite web |date=2016-11-24 |title=wiw_sa_haiti - worldinventory |url=https://sites.google.com/site/worldinventory/wiw_sa_haiti |access-date=2023-03-14 |archive-url=https://web.archive.org/web/20161124203357/https://sites.google.com/site/worldinventory/wiw_sa_haiti |archive-date=24 November 2016 }}</ref> 
* {{flag|South Korea}}: 28 acquired for special forces in the 1970s<ref>{{Cite web |date=2015-12-30 |title=wiw_as_koreasouth - worldinventory |url=http://sites.google.com/site/worldinventory/wiw_as_koreasouth |access-date=2023-03-15 |archive-url=https://web.archive.org/web/20151230033527/http://sites.google.com/site/worldinventory/wiw_as_koreasouth |archive-date=30 December 2015 }}</ref>
* {{flag|Slovenia}}<ref>{{Cite web |date=2016-11-24 |title=wiw_eu_slovenia - worldinventory |url=https://sites.google.com/site/worldinventory/wiw_eu_slovenia |access-date=2023-03-14 |archive-url=https://web.archive.org/web/20161124202711/https://sites.google.com/site/worldinventory/wiw_eu_slovenia |archive-date=24 November 2016 }}</ref>
* {{flag|Venezuela}}: Known to be used by the Cuerpo de Investigaciones Científicas Penales y Criminalísticas (Scientific Penal and Criminal Investigations Corps).<ref>{{Cite web|title=Early Colt SP1 self-loading rifle in Venezuela – Armament Research Services|url=https://armamentresearch.com/early-colt-sp1-self-loading-rifle-in-venezuela/|access-date=2021-01-29|language=en-GB}}</ref>

===Non-state users===
* {{flagicon image|Forces_Libanaises_Flag.svg}} [[Lebanese Forces (Militia)|Lebanese Forces]]<ref>{{Cite web |date=2016-03-03 |title=Lebanese Forces : The Weapons: Sub Machine Guns (SMG) |url=http://www.lebaneseforces.com/wsmg.asp |access-date=2022-11-23 |archive-url=https://web.archive.org/web/20160303174221/http://www.lebaneseforces.com/wsmg.asp |archive-date=3 March 2016 }}</ref>

==See also==
* [[Uzi]]
* [[MAC-10]]

==References==
{{Reflist}}

==Sources==
* Stepan, Randal; Nolan Wilson, Gary Reisewitz (1989). [http://www.firearmsid.com/Feature%20Articles/012001/Mac10History.htm ''Mac-10 Cookbook''. Arkansas: Desert Publications.]

==External links==
{{Commons category|MAC-11}}
*[[iarchive:firearms-ingram-mac-10--mac-11-submachine-gun|MAC Submachine Gun Operating Manual]]
*[https://www.youtube.com/watch?v=FRP_6JPh98k MAC-11] ([[YouTube]] video by [[Hickok45]])

{{.38 Caliber}}

{{Use dmy dates|date=June 2017}}

{{DEFAULTSORT:Mac-11}}
[[Category:Machine pistols]]
[[Category:Telescoping bolt submachine guns]]
[[Category:.380 ACP submachine guns]]
[[Category:9mm Parabellum submachine guns]]
[[Category:Submachine guns of the United States]]
[[Category:Simple blowback firearms]]
[[Category:Weapons and ammunition introduced in 1972]]