Provisional Single Stack Division

The Provisional Single Stack Division Rules are now available at www.uspsa.org/rules/1911_Single_Stack.pdf. The Division has been approved for a three year trial period beginning January 1, 2006.

This Provisional Division is designed around the 1911 Government Model designed by John M. Browning and adopted by the U.S. Government as the standard service pistol. The Government Model was adopted as a 5 inch barrel gun. However within certain limitations shorter barrel 1911 model pistols are also allowed. It is also recognized that the basic 1911 has evolved over the ensuing years into an improved version. Those improvements will be recognized, as long as they do not detract from the basic premise of the pistol. An example would be an external extractor as opposed to an internal extractor. All internal safety feature improvements that do not create a competitive advantage, shall be permissible.

Examples are, but not limited to, series 80 firing pin blocks, "National Match" style grip activated firing pin block, and key lock safety features in mainsprings or other places.

Pistols:

1911 production type pistols only, no comps, barrel weights, barrel ports, optics, or any kind of electronic sighting device. Pistols in this provisional division must be available to the general public and have their basis in the original 1911 service pistol. Pistols made from components that duplicate the factory originals are also acceptable. Pistols produced with attachment points for external lights or optics are not permitted.

No coned barrels or barrels with flanges will be allowed, except in 1911 compact pistols with a barrel length of 4.2 inches or less. Slides will be in factory configuration or within the specified list of allowed modifications.

Frames shall be of steel or other metallic alloy, plastic frames are not allowed.

The pistol with empty magazine and any attached base pad, when inserted in the gun, must fit in the standard IPSC box as presented in the current edition of the USPSA rule book.

Magazines in this division must be of standard length, excluding base pads. No extended magazines may be used. No modifications may be made to base pads to increase magazine capacity.

Holsters, and magazine pouches:

Competition holsters of the race gun type specifically not allowed. For clarification, all retention features of the holster must be used. All holsters must fully cover the trigger when the pistol is holstered. The front of the holster may be cut no lower than 1/4 inch below the ejection port.

Magazine pouches should be designed for continuous daily carry and should be reasonably concealable. Holsters and magazine pouches shall be worn in accordance with the diagram illustrated in Appendix F3 in the current edition of the USPSA rulebook (i.e. holster and magazines must be behind hip bone).

Rule 5.2.3.1 does not apply. (5.2.3.1: Female competitors may be permitted to wear a belt, holster and allied equipment at hip level, however, the top of the belt must not be positioned below the furthest lateral point of the top of the femur (tuberosity major). If another belt is worn at waist level, the holster and allied equipment must be placed on the lower belt )

Power Factor:

Minimum bullet caliber/cartridge case length: 9mm (.354") 19mm (0.784")
Minimum bullet caliber for major power factor 10mm (.400")

Maximum Magazine Capacity at start signal:

Major power factor 8
Minor power factor 10
All magazine capacities do not include an additional round loaded in the chamber.

Permitted modifications:

1. Sights of a post and notch type, including fiber optic front sights (milling of slide related to installation of sights is permitted)
2. Grips (no weighted grips allowed)
3. Internal accuracy work (includes replacement of the barrel with one of factory configuration, the use of Accu-Rails, the use of Spherical Bushings).
4. Internal reliability work
5. Checker front strap and back strap
6. Checker or square and checker trigger guard
7. Cosmetic checkering/serrating and flat topping of slide to include cocking serrations.
8. Extended thumb safety (may be ambidextrous) and Beavertail grip safeties
9. Extended magazine release
10. Full length guide rods manufactured of material that is no heavier than common steel.
11. Hammer and other trigger action parts to enhance trigger pull, including over travel stops
12. Beveled magazine well and add-on well extensions
13. Custom finishes

Excluded Modifications or features:

1. Full length dust covers of carbon or stainless steel
2. Slide lightening. (Removal of metal from the slide is permitted for the following: front and rear sights, front and rear cocking serrations, and flat topping and serration of the slide.)