This is the Fostech Origin-12 12 Gauge 5 Round Magazine.This Origin-12 magazine has a polymer construction with steel inlays to provide both durability and a lightweight design. This 12 gauge magazine also features finger grooves on the sides giving you a more sure grip when handling the magazine. The polymer baseplate is also easy to remove for maintenance and cleaning purposes.This magazine is also compliant with all state regulations regarding magazine capacity as it holds only 5 rounds.