This P320-XFIVE LEGION 17-round magazine baseplates (floorplate) is the factory alloy replacement to bring your magazine back to like new condition. It is also interchangeable with the 17-round non-LEGION P320 factory magazine with a square locking plate. These highly durable, aluminum alloy baseplates are machined with an aggressive checking pattern for an easy belt-grab and secure magazine reload. Additional benefits for competition shooters, these baseplates are legal for the IPSC/USPSA Production division. *Note, this replacement baseplate does not provide additional capacity to the magazines it is intended for. New never used