http://www.arpc-idpa.com/
http://www.idpa.com/
The firearms are grouped into five (5) divisions: 1) Custom Defensive Pistol (.45ACP semi-automatics only); 2) Enhanced Service Pistol (9mm (9x19) or larger caliber semi-automatics); 3) Stock Service Pistol (9mm (9x19) or larger caliber double action, double action only, or safe action semi-automatics); 4) Enhanced Service Revolver (.38 caliber or larger double action revolvers); and 5) Stock Service Revolver (.38 caliber or larger double action revolvers). See Appendix One – Equipment for delineations in the revolver divisions. Shooters are then classed by like-skill levels with progression from Novice (NV); to Marksman (MM); to Sharpshooter (SS); to Expert (EX); and, finally, to Master (MA).
A. Firearms
IDPA is divided into five (5) divisions that are entirely separate. None of the following divisions compete against any other division: Stock Service Pistol (SSP); Enhanced Service Pistol (ESP); Custom Defensive Pistol (CDP); Enhanced Service Revolver (ESR); and Stock Service Revolver (SSR).
The type of firearm the competitor uses will determine in which division he shoots. Pistols shall be classified first by action, then by caliber.
Double action, double action only and safe action pistols compete in Stock Service Pistol Division (SSP). Any gun that can be used in SSP can be used in Enhanced Service Pistol Division (ESP) or Custom Defensive Pistol Division (CDP), depending upon the caliber. Otherwise, single action guns compete in ESP or CDP, depending upon caliber. Revolvers shall be classified by capacity and loading method. See division requirements for the division in question below for further clarification.
In addition to meeting the criteria for all equipment, pistols, with an empty magazine inserted, must fit in the IDPA gun test box measuring 8 3⁄4” x 6” x 1 5/8”. Exception: Revolvers do NOT have to fit in the box.
The following modifications are NOT ALLOWED IN ANY DIVISION unless otherwise specifically mentioned.
A. Compensators of any type including hybrid or ported barrels.
B. Add-on weights for a competitive advantage (this includes, but is not limited to, weighted magazines, tungsten guide rods, brass magazine wells, weighted grips).
C. Heavy and/or cone style barrels without a barrel bushing.
D. Sights of non-standard configuration (i.e. Ghost rings, Bo-Mar rib, etc.).
E. Disconnection or disabling of any safety device on any gun.
F. Lights mounted on guns.