{{Infobox weapon, name= Caliber

.50 GI The .50 GI (12.7×23mmRB) pistol cartridge was developed by Alex Zimmermann of Guncrafter Industries. The .50 GI was introduced at the 2004 SHOT Show alongside the Guncrafter Industries Model No. 1, a variation of the M1911. The round has a ...

, Model No 1. , image= GI ModelNo1.png , caption= A Model No. 1 handgun with a spare

magazine A magazine is a periodical publication, generally published on a regular schedule (often weekly or monthly), containing a variety of content. They are generally financed by advertising, purchase price, prepaid subscriptions, or by a combinatio ...

and two

rounds , designer= Alex Zimmermann , length= 8.5 in (216 mm) , action= Locked breech, semi-auto , is_ranged=yes, , image_size = 300 , origin=United States , type=

Semi-automatic pistol A semi-automatic pistol is a type of repeating single-chamber handgun ( pistol) that automatically cycles its action to insert the subsequent cartridge into the chamber (self-loading), but requires manual actuation of the trigger to actuall ...

, cartridge=

, feed= 7 rounds (standard-capacity magazine) , rate= Semi-automatic , velocity= 875

ft/s The foot per second (plural feet per second) is a unit of both speed (scalar) and velocity (vector quantity, which includes direction). It expresses the distance in feet (ft) traveled or displaced, divided by the time in seconds (s). The correspondi ...

(267 m/s) , weight= 2.5 lb (1,134 g) , part_length= 5 in (127 mm) , variants= Model No. 2, Model No. 3, M1911 , manufacturer= Guncrafter Industries , range= 75 yd (69 m) (FM 23–35 of 1940) , sights= Heinie,

fixed Fixed may refer to: * ''Fixed'' (EP), EP by Nine Inch Nails * ''Fixed'', an upcoming 2D adult animated film directed by Genndy Tartakovsky * Fixed (typeface), a collection of monospace bitmap fonts that is distributed with the X Window System * ...

, 3-dot Trijicon The Guncrafter Industries Model No. 1 (Or M1) is a variant of the widely popular M1911 handgun, modified for the

cartridge. John Browning's 1911

.45 ACP The .45 ACP ( Automatic Colt Pistol) or .45 Auto (11.43×23mm) is a rimless straight-walled handgun cartridge designed by John Moses Browning in 1904, for use in his prototype Colt semi-automatic pistol. After successful military trials, it ...

has been used for many cartridges over the past century. In every instance the cartridge used a bullet with a diameter that was the same or smaller than the original .451". Both the Desert Eagle and the LAR Grizzly have been offered in cartridges of .50 caliber. Both are large cartridges requiring a large, heavy pistol. The Model No. 1 is basically an M1911 with external dimensions the same as a standard 1911, however it fires a

round. Although the Model No. 1 is the same size externally, the

slide Slide or Slides may refer to: Places * Slide, California, former name of Fortuna, California Arts, entertainment, and media Music Albums * ''Slide'' (Lisa Germano album), 1998 * ''Slide'' (George Clanton album), 2018 *''Slide'', by Patrick Glees ...

will not fit on a standard 1911 frame as other modifications have been made to accept the .50 GI

barrel A barrel or cask is a hollow cylindrical container with a bulging center, longer than it is wide. They are traditionally made of wooden staves and bound by wooden or metal hoops. The word vat is often used for large containers for liquids, ...

and slide. However, it is possible to convert the Model No. 1 to .45 ACP, as a .45 ACP conversion unit is available for the .50 GI frame. The .50 GI is not in the magnum class and works at the same pressures as the .45 ACP. The cartridge uses the same rim size as the .45 ACP and a .45 shell holder can be used for reloading. This new brass is made by

Starline Brass Starline may refer to: Transport * Starline.kz, a defunct Kazakhstan airline * "STARLINE", the callsign for the United Arab Emirates airline ''Red Star'', see List of airline codes * "STARLINE", the callsign of the defunct Swedish airline ''Swedli ...

and is slightly shorter than a standard .45 ACP. The magazine well in the grip frame has thinner walls than a standard M1911 to accommodate the .50 GI's wider magazine, and the frame feed ramp is contoured with a more open radius for the larger-diameter .50-caliber bullet. Both are machined from heat-treated forgings, and the Model No. 1's hammer and sear are machined from tool steel.

Model No. 2

In 2006, Guncrafter Industries introduced its 1911 Model No. 2, which sports a full length light rail/dust cover and is chambered for the .50 GI cartridge. Both the M1 and the M2 can be fitted with Guncrafter Industries' .45 ACP conversion unit, the .45 ACP magazines hold 8+1 rounds.

Model No. 3

Guncrafter Industries introduced a smaller version of Model No. 1 in 2010. The Model No. 3 is a Colt Commander-sized 1911 also chambered for .50 GI, with a shorter barrel but with a full-length grip. The M3 can also be fitted with a model-specific version of the company's .45 ACP conversion unit. Like its bigger siblings, the M3 magazines hold 7+1 rounds of .50 GI and 8+1 rounds of .45 ACP.

References

* ''The fightin' .50 GI.: for those who only use a .45 because a 50 isn't available.'' by John Taffir. Guns Magazine 51.9 (Sept 2005): p44(4). From InfoTrac OneFile.
Guncrafter Industries

External links

Model No. 2 50GI
Semi-automatic pistols of the United States .50 caliber handguns 1911 platform

Model No. 2

Model No. 3

See also

References

External links