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Glock 18
IN PRODUCTION
Quick Overview
Overview
The Glock 18 is a selective‑fire variant of the iconic Glock 17 polymer‑frame pistol, designed to fulfill the needs of military and law‑enforcement units requiring a compact, high‑capacity sidearm capable of both semi‑automatic and fully automatic fire. Developed in the early 1980s, the 18 incorporates Glock's Safe Action striker‑fire system, a lightweight yet robust polymer frame, and a steel slide with a 4.02‑inch (102 mm) barrel. Its most distinguishing feature is the integrated fire‑selector switch on the slide, allowing rapid transition between semi‑auto and burst/fully‑auto modes, and the ability to mount a standard Glock 17 33‑round magazine or higher‑capacity drum magazines. The weapon’s reputation centers on its reliability, low bore axis, and ease of maintenance, making it a favored choice for counter‑terrorism and special‑operations forces worldwide. Unique characteristics include a recessed trigger guard to accommodate a foregrip, a built‑in compensator on the barrel, and the use of the same interchangeable parts as the Glock 17, simplifying logistics while providing a true machine‑pistol capability.
Calibers & Ammunition
Dimensions
Overall Length
204 mm (8.03 in) standard, 236 mm (9.29 in) on 18C model
Barrel Length
102 mm (4.02 in) standard, 135 mm (5.31 in) on 18C model
Weight
625 g (1.38 lb) empty (standard), 730 g (1.61 lb) with 33‑round magazine
Mechanical
Action Type
Short recoil, locked breech, striker‑fired Safe Action system
Trigger Type
Safe Action striker‑fire with slide‑mounted fire selector (semi‑auto / fully‑auto)
Sights Type
Fixed polymer rear notch and front post; optional tritium night sights and aftermarket rail‑mounted optics
Magazine Capacity
33 rounds standard, 50‑round drum, 10‑round compact magazines available
How does the Glock 18 compare?
Pick any other firearm for a side-by-side spec breakdown.
