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  2. Barrel threads - Wikipedia

    en.wikipedia.org/wiki/Barrel_threads

    The shank length is not always the same at the thread length, which is the case if the insert has a threadless portion (sub-shank) Tenon designates the thread length; Shoulder designates the barrel diameter in front of the thread portion; Unless otherwise mentioned, right hand threads are assumed. Left hand threads are designated "LH".

  3. 9×25mm Dillon - Wikipedia

    en.wikipedia.org/wiki/9×25mm_Dillon

    What put an end to the 9×25mm Dillon in competition was lowering of the USPSA major power factor from 175 to 165 (160 for IPSC competition) which improved the safety and effectiveness of .38 Super (and later 9x19 "Major") loads to a point that the extra rounds that would fit maximum-allowed length magazines outweighed any muzzle flip advantage ...

  4. SIG Sauer P239 - Wikipedia

    en.wikipedia.org/wiki/SIG_Sauer_P239

    The P239 has a 91-millimetre (3.6 in) barrel with an overall length of 168 millimetres (6.6 in) and height of 132 millimetres (5.2 in), weighing approximately 710–770 g (25–27 oz) empty, depending on caliber. The included single-stack magazine has a capacity of 8 rounds (9×19mm) or 7 rounds (.357 SIG or .40 S&W).

  5. FN FNX - Wikipedia

    en.wikipedia.org/wiki/FN_FNX

    The FNX Tactical was released in .45 ACP shortly after the initial production runs of the FNX 45. It features a threaded barrel, Suppressor height tritium night sights "rear yellow front green" and a milled slide to install optics like a micro red dot sight. [6] Is available in FDE and black color options.

  6. .40 Super - Wikipedia

    en.wikipedia.org/wiki/.40_Super

    Handguns set up for the .45 Super cartridge only need a barrel swap. Handguns chambered for the .400 Cor-Bon can have their barrels rechambered to .40 Super.Gun World magazine (July 2000 ed.). 2000. Factory-chambered 1911 handguns were introduced by STI. Barrel reamers were produced by Clymer Mfg and Pacific Tool and Gauge.

  7. Caliber (artillery) - Wikipedia

    en.wikipedia.org/wiki/Caliber_(artillery)

    The length of the barrel (especially for larger guns) is often quoted in multiples of the caliber, used, for example, in US naval rifles 3 in (76 mm) or larger. [2] The effective length of the barrel (from breech to muzzle) is divided by the barrel diameter to give a dimensionless quantity.

  8. 9×19mm Parabellum - Wikipedia

    en.wikipedia.org/wiki/9×19mm_Parabellum

    Shortening the length of the cartridge case used in the Borchardt pistol allowed Luger to improve the design of the toggle lock and to incorporate a smaller, angled grip. Luger's work on the Borchardt design evolved into the Luger pistol, which was first patented in 1898 and chambered in 7.65×21mm Parabellum. Demand from Germany for a larger ...

  9. FN 509 - Wikipedia

    en.wikipedia.org/wiki/FN_509

    Barrel length is 4.0 inches (100 mm). The slide has serrations on both front and back, for easy slide manipulation. There is a full-sized grip , housing 17-round magazines ; 10-round magazines are available for states with a high-capacity magazine ban .