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FN57 Magazine Extension Kit

FN 57 Magazine 10rd Extension Kit


(In stock)

  • FN57 Magazine Extension Kit FN57 Magazine Extension Kit
  • FN57 Magazine Extension Kit - In Gun FN57 Magazine Extension Kit - In Gun

Quick Overview

We have FN 57 Magazine Extension 10rd For Sale! This is a high-quality mag extension kit made by CMMG. You simply remove floor plate, install extension, insert spring and put the floor plate back.

Availability: In Stock



Installation takes only seconds and does not permanently alter factory magazine. Chrome silicon spring is salt water resistant and will not take a set. This is a great FN57 Accessory for your FN 5.7x28 Pistol.

Additional Information

Gun Model FN57 Pistol
Manufacture Status Newly Designed Item
Returns Accepted Yes - Must Not Be Modified Or Visibly Used

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