GLOCK 17

First pistol of the Glock company was the Glock 17, a 9 mm Luger Parabellum handgun with a 17 round capacity (unusually large at the time), introduced in the early 1980s as a response to the Austrian army asking for a new sidearm. Glock pistols are popular with law enforcement agencies, Military, Security, Armored Vehicle Guards, and defense-minded private citizens. Glock was the first manufacturer to offer models chambered in the cartridge 40 S&W (Glock 22 & Glock 23 - 1990), beating Smith & Wesson to the marketplace with their own cartridge. The Glock 22 is currently (as of mid-2005) the single most popular police sidearm in use in the United States, second only to its predecesor the Glock 17; because of their ease of use, reliability, and low price, Glock pistols in general are in use by over 60% of the police officers in the US. Glock also offers pistols chambered in 357 SIG, .380 ACP, 10 mm Auto, .45 ACP, and the new .45 GAP (Glock Automatic Pistol). A very rare run of 9x21mm Glock 17 pistols were made [1]. Glock .380 pistols are not currently available in the USA due to the BATFE's point system.

"Safe Action" System
The GLOCK pistol's Safe Action trigger system offers you several very distinct benefits over conventional trigger systems. First, you can choose from several trigger pulls. Second, the trigger is the one and only operative control. Third, is the smooth and consistent pull you feel every time you squeeze the trigger. It makes training much easier because each and every shot feels exactly the same. It also makes a firearm safe.

High-Impact Resistant Polymer
The frame on a GLOCK handgun is made out of a synthetic that is actually stronger than steel, yet 86% lighter. It's virtually indestructible. A GLOCK pistol can withstand temperatures ranging from -40°C (-40 F) to +70°C (+158 F) and still come out firing.

Specifications: Calibre: 9х19 mm (9 mm Luger)
Magazine capacity, rounds: 17
Barrel length: 114 mm
Overall dimensions: 186x138x30 mm
Weight, unloaded: 0,73 kg (with empty magazine)
Trigger mechanism: SAS - Safe action system, (similar DAO - double action only)

Other calibre: 40 S&W, .357 SIG, .380 ACP, 10mm Auto, .45 ACP, .45GAP

Source: Glock, Wikipedia