Shield Arms Glock 43X/48 +5 Magazine Extension

The Shield Arms +5 extension replaces the baseplate on the Glock 43X and 48 15rd magazine and takes it to 20 rounds. The body is machined aluminum with an anodized finish. Shield Arms covers it with a lifetime warranty.

Fitment is specific and worth reading twice: this extension works with the Glock 43X/48 15rd magazine. It does not fit the 10rd magazines or the Shield Arms S-Series magazines. If you carry a 43X or a 48, this is the straightforward way to add rounds to a magazine you already run instead of moving to a different magazine body.