Colt 9mm SMG

The Colt 9mm SMG, also known as the Colt Model 635 or Colt M635, is a 9×19mm Parabellum submachine gun manufactured by Colt, based on the M16 rifle.[5]

"M635" redirects here. For BMW M6/M635CSi, see BMW E24 § M version.
Colt 9mm SMG
The Colt 9mm SMG
TypeSubmachine gun
Place of originUnited States
Service history
In service1982–present
Used bySee Users
WarsInvasion of Panama[1]
Miami Drug War[2]
Production history
Produced1982–present
Specifications
Mass2.61 kg (5.75 lb) w/o magazine[3]
Length730 mm (28.9 in ) (stock extended)[3] 650 mm (25.6 in) (stock retracted)[3]
Barrel length10.5 in[3]
Cartridge9×19mm Parabellum[3]
Actionblowback, closed bolt[3]
Rate of fire700-1000 round/min[4]
Muzzle velocity396 m/s (1300) ft/s)[4]
Effective firing range100 m[3]
Feed system20- and 32-round detachable box magazine[4]
100-round Beta C-Mag

Design details

The Colt 9mm SMG is a closed bolt, blowback operated SMG, rather than the conventional direct impingement gas operation of the standard 5.56×45mm M16 type rifle.[6] As a closed bolt weapon, the Colt SMG is inherently more accurate than open bolt weapons such as the Israeli UZI.[7]

The overall aesthetics are identical to most M16 type rifles. Changes include a large plastic brass deflector protruding from the rear quarter of the ejection port, and a correspondingly shorter dust cover. Factory Colt 9mm SMGs are equipped with a 10.5 inch length barrel and have an M16 style upper receiver, which means they feature a fixed carry handle, no forward assist and A1 sights (with 50 and 100 meter settings). The magazine well of the receiver is modified with pinned-in blocks to allow the use of smaller 9 mm magazines. The magazines themselves are a copy of the UZI magazine, modified to fit the Colt and lock the bolt back after the last shot.[8]

Variants
Further information on Colt 9mm SMG variants: AR-15 variants

Current Colt production models are the R0635 (RO635) which features a Safe/Semi/Full Auto selective fire trigger group and the R0639(RO639) which features a Safe/Semi/3-round Burst selective fire trigger group. Both are equipped with a 10.5 inch length barrel. The 633 was a modified compact version with a 7 inches (180 mm) barrel, hydraulic buffer and simplified front sight post used by the DEA.[9][10]

The most common model is the 635, the latest version of which are simply marked SMG 9mm NATO.[11] Until early 2010s, there are newer variants, R0991(RO991), R0992(RO992) and R6951 are introduced. The R0991 features Safe/Semi/Full Auto selective fire is constructed with Rail Integration System (RIS) picatinny rails on the flat-top receiver as well as around the barrel which allows the easy mounting of ancillary devices, has 10.5" barrel and equipped with a third generation composite buttstock; The R0992 has almost all the same features to the R0991, except the selective fire mode is Safe/Semi/3-round Burst only; The R6951 has almost all the same features of the R0991 and R0992, but doesn't have selective fire and has a 16.1" barrel instead of the 10.5" one.

A suppressed variant known as the "DEA model" exists that uses an integral Knights Armament Company made suppressor covered with an M16A2 handguard.[12]

Users
  • Colt SMG 635 left side
    Colt SMG 635 left side
  • Colt SMG 635 right side
    Colt SMG 635 right side
  • Colt SMG 635, ML 2 Sight, Colt mount, and a magazine
    Colt SMG 635, ML 2 Sight, Colt mount, and a magazine
  • Colt SMG 635, ML 2 Sight, Colt mount
    Colt SMG 635, ML 2 Sight, Colt mount

See also

References
  1. Gordon L. Rottman (1991). Panama 1989–90. p. 61. ISBN 1855321564.
  2. "War on Drugs". Awesomestories.com. Retrieved 2016-11-07.
  3. https://web.archive.org/web/20030610171546/http://colt.com/mil/SMG_2.asp Colt Military Catalog
  4. https://web.archive.org/web/20030610090043/http://colt.com/law/SMG.asp Colt Law Enforcement Catalog
  5. "Colt Weapon Systems". 2003-05-18. Archived from the original on 2003-05-18. Retrieved 2016-11-07.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  6. Tarr, James (2013). Standard Catalog of Colt Firearms. Iola, Wisconsin: Krause Publications. p. 237. ISBN 978-1-4402-3747-8. Retrieved 31 August 2016.
  7. Technical Memorandum 2-79. AIMING POINT DISPLACEMENT FROM FIRING A RIFLE FROM THE OPEN-BOLT POSITION. by Dominick J. Giordano I. February 1979. U.S. Army Human Engineering Laboratory 1, U. S. ARMY HUMAN ENGINEERING LABORATORY, Aberdeen Proving Ground, Maryland 21005
  8. Thompson, Leroy (19 May 2016). The M3 "Grease Gun". Bloomsbury Publishing. pp. 141–142. ISBN 978-1-4728-1109-7.
  9. Peterson, Philip (2011). Standard Catalog of Military Firearms: The Collector's Price and Reference Guide. Iola, Wisconsin: F+W Media. p. 387. ISBN 978-1-4402-2881-0.
  10. Sweeney, Patrick (18 January 2016). Gun Digest Book of Suppressors. Iola, Wisconsin: F+W Media, Inc. p. 45. ISBN 978-1-4402-4532-9.
  11. Lewis, Jack (2011). "A Case of Colt Confusion". Assault Weapons. Iola, Wisconsin: Gun Digest Books. pp. 208–210. ISBN 978-1-4402-2400-3.
  12. https://gunmagwarehouse.com/blog/the-colt-smg-and-its-many-clones/
  13. "Algunas armas utilizadas por el actual Ejército Argentino". Aquellas armas de guerra. 5 November 2012. Retrieved 15 November 2014.
  14. "Sabitha's day out with latest weapons of Octopus". The New Indian Express. Retrieved 2016-11-07.
  15. "PALSAR Golani operator posing with a Colt 9mm SMG. The weapon is fitted with a sound suppressor and a forward grip". Retrieved 2016-11-21.
  16. "PASKAU Malaysian Special Air Service Weapons". Military Factory. Archived from the original on May 7, 2016. Retrieved April 14, 2016.
  17. "9 Millimeter Submachine Gun NSN 1005-01-575-5656". National Stock Number. Archived from the original on 18 May 2022. Retrieved 18 May 2022.
  18. "Archived copy" (PDF). Archived from the original (PDF) on 2009-01-10. Retrieved 2014-06-11.{{cite web}}: CS1 maint: archived copy as title (link)
  19. "Chuck Taylor's ASAA -THE COLT M635 9mm SUBMACHINE GUN". Archived from the original on 4 March 2016. Retrieved 15 November 2014.

Notes
  1. R0991 has an NSN 1005-01-575-5656


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