ISSF 50m Pistol
From Shooting Wiki
Specification
Almost any .22LR pistol that has open sights can be used in a Free Pistol competition and some very good scores have been fired with Standard Pistols. Pistols used for this event must conform to the ISSF Free Pistol Specification, which covers such items as sights, and grip styles. One point to note is that only one shot may be loaded at a time.
