This magazine extension is designed for the Sig Sauer MPX magazine and can add up to 10 rounds in 9mm. These are made from high quality aluminum and hard anodized to provide an ultra durable finish. Our extensions are easy to remove and clean. Whether it is for duty, competition or recreation, this is a great addition to your MPX.  For use with the 20 and 30rd mags only. 

2.50 oz

Custom engraved and custom colors are non-returnable.

We now offer an extra power magazine spring for the MPX extensions.  It is not necessary for normal feeding and functioning, however, it may be necessary for slide lock functionality after last shot fired.

***MODIFICATION ON THE MAGAZINE FOLLOWER IS REQUIRED.***

***DO NOT USE THE BOTTOM PLATE ON YOUR MAGAZINE SPRING.***