|Colt 9mm SMG|
The Colt 9mm SMG
|Place of origin||United States|
|Used by||See Users|
|Weight||2.61 kg (5.75 lb) w/o magazine|
|Length||730 mm (28.9 in ) (stock extended)
650 mm (25.6 in) (stock retracted)
|Barrel length||10.5 in|
|Action||blowback, closed bolt|
|Rate of fire||700-1000 round/min|
|Muzzle velocity||396 m/s (1300) ft/s)|
|Effective range||100 m|
|Feed system||32 round detachable box magazine|
The Colt 9mm SMG is a closed bolt, blowback operated SMG, rather than the conventional direct impingement gas operation of the standard 5.56x45mm M16 type rifle. The overall aesthetics are identical to most M16 type rifles. Changes include a large plastic brass deflector mounted toward the rear of the ejection port. 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 using a special adaptor to allow the usage of smaller 9mm magazines. The magazines themselves are a copy of the Israeli UZI SMG magazine, modified to fit the Colt and lock the bolt back after the last shot.
Because of the muzzle brake/compensator and the auto-burst feature it is a very accurate submachine-gun, much more so than most older designs.
Current Colt production models are the RO635 which features a Safe/Semi/Full Auto selective fire trigger group and the 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 and flip-up front sight post used by the U.S. Department of Energy Nuclear Couriers. The D.E.A. Clandestine (Methamphetamine) Lab Team (C.L.E.T.) also had a special version that featured an integral suppressor made by Knight's Armament Company. The D.E.A. version prevented muzzle flash from igniting fumes if fired in the meth labs.
The most common model is the 635, the latest version of which are simply marked SMG 9mm NATO.
- Bahamas: Royal Bahamas Defence Force Commando Squadron.
- Bangladesh: Extensively used by the Dhaka Metropolitan Police SWAT.
- Malaysia: Used by the Pasukan Khas Udara (PASKAU) of the Royal Malaysian Air Force.).
- Panama: Used by the Policia Motorizada "Linces" Unit of Panama National Police.
- United States: Used by the U.S. Marine Corps. Also used by the Drug Enforcement Administration (DEA), the U.S. Marshals Service, U.S. Department of Energy and a number of other federal agencies. U.S. Diplomatic Security Service (DSS)
- "Dhaka Metropolitan Police SWAT - Overview". bdmilitary. http://www.bdmilitary.com/index.php?option=com_content&view=article&id=275&Itemid=132. Retrieved 22 February 2009.
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