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  2. Sphinx Systems - Wikipedia

    en.wikipedia.org/wiki/Sphinx_Systems

    Sphinx Systems Limited was a Swiss-based manufacturer of high quality pistols used mainly by special forces, elite police units and sports shooters.Sphinx was founded in 1976, specializing in tooling and machining, and then diversified into the firearms industry during the 1980s.

  3. Improvised firearm - Wikipedia

    en.wikipedia.org/wiki/Improvised_firearm

    The Brocock Air Cartridge System, for example, uses a self-contained "cartridge" roughly the size of a .38 Special cartridge, which contains an air reservoir, valve, and a .22 caliber (5.5 mm) pellet. Examples of BACS airguns converted to firearms, either by drilling the barrel out to fire a .38 Special cartridge or by altering the cylinder to ...

  4. Heckler & Koch P7 - Wikipedia

    en.wikipedia.org/wiki/Heckler_&_Koch_P7

    A schematic of the P7's gas-delayed blowback system.. The P7 is a semi-automatic blowback-operated firearm. It features a unique gas-delayed blowback system modeled on the Swiss Pistole 47 W+F (Waffenfabrik Bern) prototype pistol [6] (and ultimately on the Barnitzke system first used in the Volkssturmgewehr 1-5), [7] which used gas pressures from the ignited cartridge and fed them through a ...

  5. 7.65mm Roth–Sauer - Wikipedia

    en.wikipedia.org/wiki/7.65mm_Roth–Sauer

    The Roth-Sauer pistol was named for its Austrian patentee Georg Roth, but was developed by Czech designer Karel Krnka . It was produced in small quantities (probably less than 3000) by J P Sauer & Sohn of Suhl in Germany during the early 1900s. It employed a notably complex long-recoil mechanism to fire a unique 7.65 x 13mm cartridge.

  6. Dreyse M1907 - Wikipedia

    en.wikipedia.org/wiki/Dreyse_M1907

    The Dreyse pistol is fired by a striker whose tail protrudes back through the rear of the breech block when the chamber is loaded. The entire top section of the frame and slide can be pivoted on a pin in front of the trigger guard, being locked in the firing position by a catch at the rear of the frame.

  7. 3D printed device to turn pistols into automatic weapons ...

    www.aol.com/3d-printed-device-turn-pistols...

    Aiming a 9mm handgun at a paper target, the agent fired 25 rounds in 1.7 seconds. ... Scott led police on a pursuit that started north of NW 23 before quickly turning south on Classen Boulevard ...

  8. Microstamping - Wikipedia

    en.wikipedia.org/wiki/Microstamping

    When the gun is fired, these etchings are transferred to the primer by the firing pin and to the cartridge case head by the breech face, using the pressure created when a round is fired. After being fired, if the cases are recovered by police, the microscopic markings imprinted on the cartridges can then be examined by forensic ballistics ...

  9. QSZ-92 - Wikipedia

    en.wikipedia.org/wiki/QSZ-92

    The decision to develop a new pistol was made in 1987 to replace the Type 54/64/77. [4] Research and development started in 1992. [4] Development of the QSZ-92 pistol began in 1994 and was adopted by the People's Liberation Army's forces in 1998. The export variants (9×19mm versions) include the CF-98 (barrel life c. 8,000 rds) and the NP-42 ...