Abstract: The present disclosure relates to a modular firearm frame adapter that aid in making compatible a slide associated with a first firearm and a frame associated with a second firearm. The compatibility is such that the slide associated with a first firearm and a magazine associated with a second firearm being able to function properly as a single integrated firearm. This system includes an adapter, and one or more adapter elements that aids allowing the modular firearm to function properly.

Abstract: The present disclosure provides an improved concealed carry clip, that attaches with machine screws to the slide rear cover plate, and which has friction features on the clip to facilitate drawing back the slide with the thumb and index finger. In addition, the cover plate can be equipped with projections that reduce shearing forces on the machine screws. A drilled and tapped replacement rear cover plate is provided with the improved concealed carry clip. Though the improved concealed carry clips have, to date, been designed for Glock®, M&P® and Springfield Armory® XD handguns, the concealed carry clips may be adapted for use on other similarly constructed handguns in the future.

Abstract: A cartridge magazine is provided. The cartridge magazine may include a rib mounted on a vertical wall of the cartridge magazine. The cartridge may further include a ramp attached to a top of the rib. In another embodiment, the cartridge magazine may include an opening including spacer having a flat portion. The flat portion provides space for a cartridge of a particular caliber between the flat portion of the spacer and an opposing wall of the cartridge magazine.

Abstract: A cartridge magazine is provided. The cartridge magazine may include a rib mounted on a vertical wall of the cartridge magazine. The cartridge may further include a ramp attached to a top of the rib. In another embodiment, the cartridge magazine may include an opening including spacer having a flat portion. The flat portion provides space for a cartridge of a particular caliber between the flat portion of the spacer and an opposing wall of the cartridge magazine.