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MAC-11

August 26, 2023

The MAC-11 (Military Armament Corporation Model 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.[5][6] The weapon is a sub-compact version of the Model 10 (MAC-10), and is chambered to fire the smaller .380 ACP round.[6]

MAC-11
A Cobray MAC-11/9, a variant of the MAC-11
TypeMachine pistol
Submachine gun
Place of originUnited States
Service history
In service1972–present
Used bySee Users
WarsLebanese Civil War, Yugoslav Wars
Production history
DesignerGordon Ingram[1]
Designed1972
A prototype was in development in 1964 and 1965
Manufacturer
Produced1972–present
VariantsMAC-11A1
MAC-11/9
Specifications
Mass1.59 kg (3.50 lbs)
Length248 mm (531 mm stock extended) (9.76 in/20.90 in)
Barrel length129 mm (5.08 in)
Cartridge.380 ACP (9×17mm)
9×19mm Parabellum
ActionStraight blowback
Rate of fire1200 rounds/min[2]
Muzzle velocity980 ft/s (300 m/s)
Effective firing range
Feed system16 or 32-round box magazine[1][4]
SightsIron sights

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 Parabellum cartridge.[7][2] Cobray also made a .380 ACP variant called the M12.[8]

Design Edit

 
MAC-11 submachine gun/machine pistol

Operation Edit

Like the larger M-10, the M-11 has iron sights with the rear pinhole sight welded to the 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 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 Edit

The rate of fire of the M-11A1 is one of the biggest complaints about the firearm. Listed as 1,200 rounds per minute,[2] 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.[9] 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.[citation needed] 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".[10]

The M-11 is the least common version in the MAC family of firearms.[citation needed]

Sound suppressor Edit

 
MAC-11/9 with 32-round magazine and suppressor

A specific suppressor was developed for the MAC-11, which used wipes as 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 224 mm (8.8 in) long and is covered with Nomex, a heat-resistant material.[1]

Manufacturers Edit

MAC-type submachine guns and semi-automatic pistols were first manufactured by the Military Armament Corporation, and later by RPB Inc.,[11] Cobray (later named Leinad, then Sylvia/Wayne Daniel Inc.), Jersey Arms, MasterPiece Arms,[2] and Vulcan.

Users Edit

  •   Argentina: In 1972, 20 were acquired for police and intelligence services. A further 24 were acquired for the Army and air force in 1973.[12]
  •   Brazil: SWD M11/9 formerly used by GRUMEC[13]
  •   Colombia: 25 acquired by police forces in the 1970s[14]
  •   Chile: Cobray M11/9 formerly used by special forces[15]
  •   Dominican Republic[16]
  •   Guatemala: 135 acquired for police forces in 1973[17]
  •   Haiti[18]
  •   South Korea: 28 acquired for special forces in the 1970s[19]
  •   Slovenia[20]
  •   Venezuela: Known to be used by the Cuerpo de Investigaciones Científicas Penales y Criminalísticas (Scientific Penal and Criminal Investigations Corps).[21]
  •   Yugoslavia: In August of 1972, the company Jugoexport ordered 500 Ingram MAC-11 machine pistols in .380 ACP, along with 500 holsters, 500 Sionics suppressors w/ holsters and 1500 spare magazines, delivered in early 1973.[22] Used during the Yugoslav civil wars.[23]

Non-state users Edit

See also Edit

References Edit

  1. ^ a b c Hogg, Ian (1989). Jane's Infantry Weapons 1989-90, 15th Edition. Jane's Information Group. p. 117. ISBN 0-7106-0889-6.
  2. ^ a b c d Walker, Robert E. (2012). Cartridges and Firearm Identification. CRC Press. pp. 216, 241, 322. ISBN 978-1466502062.
  3. ^ "MAC Ingram M10 / M11 (USA)". Weapon.ge – Modern Firearms Encyclopedia. Retrieved 11 June 2011.
  4. ^ "Operation and Maintenance Manual: Military Armament Corporation" (PDF). Military Armament Corporation. pp. 2, 5, 28.
  5. ^ Frank Iannamico. The Mac Man: Gordon B. Ingram and His Submachine Guns. p. 103. ISBN 978-0-9823918-1-5.
  6. ^ a b Jack Lewis (2004). Assault Weapons. Krause. p. 76.
  7. ^ Jones, Richard (2009). Jane's Infantry Weapons 2009-2010. Jane's Information Group. p. 139. ISBN 978-0-7106-2869-5.
  8. ^ Jerry Lee (2011). The Gun Digest Book of Guns & Prices 2011. Gun Digest Books. p. 235. ISBN 978-1440235436.
  9. ^ "Ingram MAC Model 10 / M10 and Model 11 / M11 submachine guns (USA)". Official site.
  10. ^ Jack Lewis (28 February 2011). Assault Weapons. Gun Digest Books. pp. 79–. ISBN 978-1-4402-2400-3.
  11. ^ Iannamico, Ian. "Manufacturing History of Ingram-MAC Type Firearms". Small Arms Review. Chipotle Publishing, LLC. 20 (1): 104.
  12. ^ . 24 November 2016. Archived from the original on 24 November 2016. Retrieved 28 February 2023.
  13. ^ Olive, Ronaldo. Enciclopedia De Submetralhadoras. p. 272.
  14. ^ . 12 March 2016. Archived from the original on 12 March 2016. Retrieved 14 March 2023.
  15. ^ . 18 May 2015. Archived from the original on 18 May 2015. Retrieved 14 March 2023.
  16. ^ . 24 November 2016. Archived from the original on 24 November 2016. Retrieved 14 March 2023.
  17. ^ . 24 November 2016. Archived from the original on 24 November 2016. Retrieved 14 March 2023.
  18. ^ . 24 November 2016. Archived from the original on 24 November 2016. Retrieved 14 March 2023.
  19. ^ . 30 December 2015. Archived from the original on 30 December 2015. Retrieved 15 March 2023.
  20. ^ . 24 November 2016. Archived from the original on 24 November 2016. Retrieved 14 March 2023.
  21. ^ "Early Colt SP1 self-loading rifle in Venezuela – Armament Research Services". Retrieved 29 January 2021.
  22. ^ "Yugoslav Wars".
  23. ^ Bri_J (29 August 2019), Ingram MAC-11 9mm Silenced Sub-Machine Gun, retrieved 15 March 2023
  24. ^ . 3 March 2016. Archived from the original on 3 March 2016. Retrieved 23 November 2022.

Sources Edit

  • Stepan, Randal; Nolan Wilson, Gary Reisewitz (1989). Mac-10 Cookbook. Arkansas: Desert Publications.

External links Edit

 
Wikimedia Commons has media related to MAC-11.

August 26, 2023
military, armament, corporation, model, machine, pistol, submachine, developed, american, firearm, designer, gordon, ingram, military, armament, corporation, during, 1970s, powder, springs, georgia, united, states, weapon, compact, version, model, chambered, f. The MAC 11 Military Armament Corporation Model 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 5 6 The weapon is a sub compact version of the Model 10 MAC 10 and is chambered to fire the smaller 380 ACP round 6 MAC 11A Cobray MAC 11 9 a variant of the MAC 11TypeMachine pistolSubmachine gunPlace of originUnited StatesService historyIn service1972 presentUsed bySee UsersWarsLebanese Civil War Yugoslav WarsProduction historyDesignerGordon Ingram 1 Designed1972 A prototype was in development in 1964 and 1965ManufacturerMilitary Armament Corporation Cobray Company RPB SWD Inc Jersey Arms Leinad MasterPiece ArmsProduced1972 presentVariantsMAC 11A1MAC 11 9SpecificationsMass1 59 kg 3 50 lbs Length248 mm 531 mm stock extended 9 76 in 20 90 in Barrel length129 mm 5 08 in Cartridge 380 ACP 9 17mm 9 19mm ParabellumActionStraight blowbackRate of fire1200 rounds min 2 Muzzle velocity980 ft s 300 m s Effective firing range50 meters 380 ACP 70 meters 9 19mm Parabellum 3 Feed system16 or 32 round box magazine 1 4 SightsIron sightsThis weapon is sometimes confused with the Sylvia amp 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 Parabellum cartridge 7 2 Cobray also made a 380 ACP variant called the M12 8 Contents 1 Design 1 1 Operation 1 2 Performance 1 3 Sound suppressor 2 Manufacturers 3 Users 3 1 Non state users 4 See also 5 References 6 Sources 7 External linksDesign Edit MAC 11 submachine gun machine pistolOperation Edit Like the larger M 10 the M 11 has iron sights with the rear pinhole sight welded to the 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 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 Edit The rate of fire of the M 11A1 is one of the biggest complaints about the firearm Listed as 1 200 rounds per minute 2 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 9 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 citation needed 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 10 The M 11 is the least common version in the MAC family of firearms citation needed Sound suppressor Edit MAC 11 9 with 32 round magazine and suppressorA specific suppressor was developed for the MAC 11 which used wipes as 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 224 mm 8 8 in long and is covered with Nomex a heat resistant material 1 Manufacturers EditMAC type submachine guns and semi automatic pistols were first manufactured by the Military Armament Corporation and later by RPB Inc 11 Cobray later named Leinad then Sylvia Wayne Daniel Inc Jersey Arms MasterPiece Arms 2 and Vulcan Users Edit Argentina In 1972 20 were acquired for police and intelligence services A further 24 were acquired for the Army and air force in 1973 12 Brazil SWD M11 9 formerly used by GRUMEC 13 Colombia 25 acquired by police forces in the 1970s 14 Chile Cobray M11 9 formerly used by special forces 15 Dominican Republic 16 Guatemala 135 acquired for police forces in 1973 17 Haiti 18 South Korea 28 acquired for special forces in the 1970s 19 Slovenia 20 Venezuela Known to be used by the Cuerpo de Investigaciones Cientificas Penales y Criminalisticas Scientific Penal and Criminal Investigations Corps 21 Yugoslavia In August of 1972 the company Jugoexport ordered 500 Ingram MAC 11 machine pistols in 380 ACP along with 500 holsters 500 Sionics suppressors w holsters and 1500 spare magazines delivered in early 1973 22 Used during the Yugoslav civil wars 23 Non state users Edit Lebanese Forces 24 See also EditUziReferences Edit a b c Hogg Ian 1989 Jane s Infantry Weapons 1989 90 15th Edition Jane s Information Group p 117 ISBN 0 7106 0889 6 a b c d Walker Robert E 2012 Cartridges and Firearm Identification CRC Press pp 216 241 322 ISBN 978 1466502062 MAC Ingram M10 M11 USA Weapon ge Modern Firearms Encyclopedia Retrieved 11 June 2011 Operation and Maintenance Manual Military Armament Corporation PDF Military Armament Corporation pp 2 5 28 Frank Iannamico The Mac Man Gordon B Ingram and His Submachine Guns p 103 ISBN 978 0 9823918 1 5 a b Jack Lewis 2004 Assault Weapons Krause p 76 Jones Richard 2009 Jane s Infantry Weapons 2009 2010 Jane s Information Group p 139 ISBN 978 0 7106 2869 5 Jerry Lee 2011 The Gun Digest Book of Guns amp Prices 2011 Gun Digest Books p 235 ISBN 978 1440235436 Ingram MAC Model 10 M10 and Model 11 M11 submachine guns USA Official site Jack Lewis 28 February 2011 Assault Weapons Gun Digest Books pp 79 ISBN 978 1 4402 2400 3 Iannamico Ian Manufacturing History of Ingram MAC Type Firearms Small Arms Review Chipotle Publishing LLC 20 1 104 wiw sa argentina worldinventory 24 November 2016 Archived from the original on 24 November 2016 Retrieved 28 February 2023 Olive Ronaldo Enciclopedia De Submetralhadoras p 272 wiw sa colombia worldinventory 12 March 2016 Archived from the original on 12 March 2016 Retrieved 14 March 2023 wiw sa chile worldinventory 18 May 2015 Archived from the original on 18 May 2015 Retrieved 14 March 2023 wiw sa dominicanrepublic worldinventory 24 November 2016 Archived from the original on 24 November 2016 Retrieved 14 March 2023 wiw sa guatemala worldinventory 24 November 2016 Archived from the original on 24 November 2016 Retrieved 14 March 2023 wiw sa haiti worldinventory 24 November 2016 Archived from the original on 24 November 2016 Retrieved 14 March 2023 wiw as koreasouth worldinventory 30 December 2015 Archived from the original on 30 December 2015 Retrieved 15 March 2023 wiw eu slovenia worldinventory 24 November 2016 Archived from the original on 24 November 2016 Retrieved 14 March 2023 Early Colt SP1 self loading rifle in Venezuela Armament Research Services Retrieved 29 January 2021 Yugoslav Wars Bri J 29 August 2019 Ingram MAC 11 9mm Silenced Sub Machine Gun retrieved 15 March 2023 Lebanese Forces The Weapons Sub Machine Guns SMG 3 March 2016 Archived from the original on 3 March 2016 Retrieved 23 November 2022 Sources EditStepan Randal Nolan Wilson Gary Reisewitz 1989 Mac 10 Cookbook Arkansas Desert Publications External links Edit Wikimedia Commons has media related to MAC 11 MAC Submachine Gun Operating Manual MAC 11 YouTube video by Hickok45 Retrieved from https en wikipedia org w index php title MAC 11 amp oldid 1171250043, wikipedia, wiki, book, books, library,

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