This is the Shield Arms S15 9mm 25-round magazine for Glock 43X, 48 pistols. 

Gone are the days of low-capacity magazines for your Glock 43X and Glock 48 pistols! 

This pre-assembled Shield Arms magazine provides a whopping 25-round capacity thanks to an aluminum +10 magazine extension. You won’t have to worry about installation or durability!

An anti-tilt polymer follower and an included power spring will ensure every round is perfectly aligned and ready to head down range. To top it all off, you’ll find side-facing witness holes that provide instant capacity checks. 

You’ll more than double your OEM capacity, making this magazine a no-brainer!

Grab a few today and never look back!

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.