5.7 10rd Mag Extension. The ultimate upgrade to your 5.7x28 pistol. Simply remove floor plate, inspect factory mag opening for burrs (remove burrs as necessary) install extension, insert spring and add floor plate. Installation takes only seconds and does not permanently alter factory magazine. Chrome silicon spring is salt water resistant and will not take a set (allows you to leave your magazine filly loaded for extended periods with no loss of 'spring power'.
Sold per EACH. Package includes all you need to easily install the extention onto your FiveseveN magazine (magazine not included). Gun and additional items not included.
Express orders for items available to ship the same business day must be placed by 1 PM MST. Express orders received after 1PM ready for immediate shipment will not be shipped until the following business day.
Note: Delivery times are approximate and although generally accurate are not guaranteed. FFL transfer issues may affect delivery times.
Express shipping is only available in the continental US to non-PO Box addresses. AP/FPO addresses may add to the delivery time.
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