A Carry Optics pistol is a semi-automatic handgun with a mounted red dot sight, subject to specific rules in competitive shooting, such as being on the USPSA Approved Production List and a maximum weight of 59 ounces (with an empty magazine). It must use a striker-fired or double-action/single-action mechanism and cannot have a flared or extended magazine well, while allowed modifications include slide milling for the optic, stippling, and trigger guard undercutting