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semi automatic guns




Semi-automatic guns:

Semi automatic guns are the firearms which are automatically loaded after the first round is fired.
These type of guns have a special mechanism which operates on the energy released from the first shot.
A semi-automatic pistol harnesses the energy of one shot to reload the chamber for the next, typically via recoil operation, blowback, or gas operation. After a round is fired, the spent casing is ejected and a new round from the magazine is loaded into the chamber, allowing another shot to be fired as soon as the trigger is again pulled.
Normally this semi-automatic pistols have synonyms like self-loading auto pistol, automatic pistol, auto-loading pistol, self acting pistol.

Evolution of semi-automatic pistols

After Hiram Maxim introduced his recoil-powered machine gun in 1883, several gunsmiths set out to apply the same principles to handguns, including Maxim. Maxim's designs for smaller firearms using his recoil-powered ideas never went into production. In the 1880s, other designers worked on self-loading designs. The first model to gain any commercial success was the Hugo Borchardt-designed C-93, designed in 1893 and made its public debut in 1894. Borchardt invented the C-93 mechanism, based in large part upon Maxim's toggle-lock principle. The C-93 featured a clever locking mechanism modeled after the human knee joint. in which the mechanical joint is called a knee, or in German Kniegelenk (knee joint). ( * Wikipedia source)

The evolution of pistols can be shown from the period 1880 to present ...
The order of the semi-automatic pistols is shown below-
  • Borchardt C-93 pistol  (1883)


  • Nagant M1895  (1891) soviet

     

  • Mauser C96  (1896)


  • FN Browning M1900  (1896)

  •  M1911  (1911)

  • TT-30 (1914) world war -1 - soviet union

  • Browning hi-power pistol (1922)


  • Walther P38 (1938) nazi- germany


  • Smith & wesson model 39


  •  Smith & Wesson Model 59

  • Beretta 92

  • GLOCK (1980)



  • SIG P226 (1983)

  • Walther P88  (1988)

  • HK USP (1993)

  • Kel-Tec P-11 (1995)

  • Kel-Tec P-32 (1999)

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