Steyr GB: full disassembly & assembly

The Steyr GB is a double-action 9×19mm Parabellum caliber, large-framed semi-automatic pistol employing a gas-delayed blowback action. As such the GB abbreviation stand for Gasbremse (gas brake). The weapon went into general civilian production in 1982, and in 1988 production ceased.

It features a unique gas-delayed blowback system based on the Barnitzke system, first used in the Volkssturmgewehr 1-5, and subsequently in the Swiss Pistole 47 W+F (Waffenfabrik Bern) prototype pistol. The Barnitzke system uses gas pressure from the ignited cartridge and feeds it through a small port in the barrel in front of the chamber to retard the rearward motion of the slide. This is accomplished by using the fixed piston formed by the outside of the barrel inside a moving cylinder formed by the inside of the slide and gas pressure in the space between them opposing the rearward motion of the slide until the gas pressure has declined (at which point the bullet has left the muzzle) thereby allowing the slide to continue its rearward motion. Thereafter the Steyr GB follows the conventional semi-automatic cycle: opening the breech; ejecting the empty cartridge case; stripping a new round from the magazine; loading a new cartridge; returning to battery (unless the magazine is empty).

https://en.wikipedia.org/wiki/Steyr_GB

How a Steyr GB works
   • How a Steyr GB works  

Don't try to recreate what you see in this video, as this is gameplay. This video was created using the game World of Guns:
http://store.steampowered.com/app/262...
This game is also available on Google Play, App Store, Amazon and other platforms.

#SiVisPacemParaBellum #ParaBellum #Steyr #SteyrGB