Military Factory logo

Glock 18 Semi-Automatic / Full-Automatic Pistol (Austria)

The Glock 18 allowed the ability to fire in both semi- and full-automatic modes from a 33-round high capacity magazine.

 Entry last updated on 11/11/2016; Authored by Captain Jack; Content ¬©

  Glock 18  
Picture of Glock 18 Semi-Automatic / Full-Automatic Pistol (Austria)
Picture of Glock 18 Semi-Automatic / Full-Automatic Pistol (Austria) Picture of Glock 18 Semi-Automatic / Full-Automatic Pistol (Austria)

The Glock 18 (or Glock Model 18) was similar in many ways to the preceding Glock 17 production model though allotted new internals as well as a new slide and frame making it incompatible with the former. One of the key differences between the Glock 18 and Glock 17 was the former's addition of selective fire, allowing for both single-shot, semi-automatic and full-automatic fire modes by way of a two-position selector switch fitted to the left rear side of the slide component. The switch was flipped up for single-shot fire and flipped down for full automatic fire. Externally, however, the two pistols could appear nearly identical to the untrained eye. The Model 18 was developed by Glock AG of Deutsch-Wagram, Austria to fulfill a military counter-terrorism role within the Austrian EKO Cobra special forces group. Its full-automatic fire mode and extreme high-capacity (33 rounds) magazine naturally precluded its sale to the public and made it hugely popular in Hollywood motion pictures.

Use of a selective fire system allowed the Model 18 to provide voluminous fire capabilities from within a compact package. The Model 18 was chambered for the universally accepted 9x19mm Parabellum pistol cartridge which had also been adopted into submachine gun lines. The 9mm cartridges could be loaded into the Glock 18 by way of the standard Glock 17 magazine or the special extended 33-round capacity magazine most common to the Glock 18. The Model 18 could fire its 33-round magazine in seconds while featuring a 1,200 round-per-minute rate-of-fire. Barrel length was approximately 4.6 inches. Sighting was through the standard Glock front-and-rear arrangement. Spent cartridges were ejected through a typical top mounted ejection port, the slide recoiling rearwards with each successive shot.

Of course this sort of compact firepower came at a price. Since the Glock 18 was essentially a high volume pistol (modified into the machine pistol role), recoil was extraordinary particularly to the untrained shooter. As such, the model was typical fitted with its own adjustable skeletal stock to permit firing from the shoulder (the second hand gripping the extended magazine) with more control and, therefore, more inherent accuracy. However, its use of the 9mm Parabellum pistol cartridge and handgun frame kept it more or less a short-to-extreme-middle ranges weapon system.

A version of the Glock 18 with add-on recoil compensator was introduced in the "Glock 18C" model and, like other Glock guns, was engraved to showcase the change along the forward portion of the slide.

Glock 18

Service Year: 1985
Type: Semi-Automatic / Full-Automatic Pistol
National Origin: Austria
Manufacturer(s): Glock AG - Austria

Design (Internal, Dimensions and Weights)

Firing Action: Short Recoil; Select-Fire
Available Caliber(s): 9x19mm Parabellum
Ammunition Count / Feed: 10-, 17-, 19- or 33-round detachable box magazine
Overall Length: 186 mm (7.32 inches)
Barrel Length: 116 mm (4.57 inches)
Weight (Empty): 1.41 lb (0.64 kg)
Sighting Assist: Iron Front and Rear


Muzzle Velocity: 1,230 feet/sec (375 m/sec)
Rate-of-Fire (RoF): 1,200 rounds-per-minute (rpm)
Typical Range: 165 feet (50 meters; 55 yards)

Global Operators / Customers / Users

Austria; Israel; Malaysia; Pakistan; United States

Model Variants (Including Prototypes)

Model 18 - Base Series Designation
Model 18C - Recoil Compensator

Glock 18 Images