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Product Info for MagPump FN 509 9mm Double Stack Magazine Retainer
With the MagPump FN 509 9mm Double Stack Magazine Retainer, you'll be able to keep more ammo in your magazines. The pump-action double mag return spring on this Speed Loader from MagPump is durable and uniquely designed for double stack magazines. The MagPump FN 509 9mm Double Stack Magazine Retainer Refreshes and adapts your existing magazines to work with the new magazine return spring technology. The factory mag spring retainers on your FN 509 magazines have been discontinued. With these MagPump FN 509 9mm - Double Stack Magazine Refreshers, you can get a pump action magazine loader for your Glock, SIG, Smith & Wesson, CZ, or Ruger magazines.
Specifications for MagPump FN 509 9mm Double Stack Magazine Retainer:
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