Introducing the Kel-Tec P50, R50 Magazine 50-Round 5.7x28mm 2PK with Coupler. This replacement magazine is a factory original from Kel-Tec. Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts which guarantees excellent fit and reliable operation. Keeping a few extra factory magazines around is never a bad idea; extra magazines save loading time at the range and also serve as a backup for those days when you simply cannot remember where you put your primary magazine. Features(2) 50 Round MagazinesMagazine Coupler