Submachine Gun Colt 9mm SMG

Submachine Gun Colt 9mm SMG

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

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. As a closed bolt weapon, the Colt SMG is inherently more accurate than open bolt weapons such as the Israeli UZI.

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.

Variants

Current Colt production models are the R0635 which features a Safe/Semi/Full Auto selective fire trigger group and the R0639 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.

The most common model is the 635, the latest version of which are simply marked SMG 9mm NATO. Until early 2010s, there are newer variants, R0991R0992 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 with 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 to he R0991 and R0992, but doesn’t have selective fire and has the 16.1” barrel instead of the 10.5″ one.

Specifications

Mass 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

Cartridge 9×19mm Parabellum
Action blowback, closed bolt
Rate of fire 700-1000 round/min
Muzzle velocity 396 m/s (1300) ft/s)
Effective firing range 100 m[3]
Feed system 20- and 32-round detachable box magazine

Users

  • Argentine Army
  • Israel : Used by IDF special forces.
  • Malaysia: Used by the Pasukan Khas Udara (PASKAU) Counter-Terrorism Forces of the Royal Malaysian Air Force
  • United States Marine Corps
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