The Shield Arms Glock® 19/23 Magazine Extension adds 5 rounds to your Glock 19 magazine, and 4 rounds to your Glock 23 magazine. Our unique, easy access floor plate design allows you to quickly access the spring and follower without having to remove the extension from the magazine body. Comes with a 100% lifetime warranty, and the Shield Arms Spring for Life guarantee.

Don't want to do the installation? Check out our Glock 19 with pre-installed extension here.

Features
Unique easy access floor plate design to service or clean the magazine body without the need to remove the magazine extension from the magazine body.
Index cuts on the extension body to increase grip when coming out of a magazine pouch.
Machined from billet 6061 aluminum
Type 2 anodized
Adds 5 rounds to Glock 19 9mm
Adds 4 rounds to Glock 23 40 S&W
Comes with a +10% power spring
Fits OEM Glock 13 and 15 round magazines only
Proudly made in the USA
Fits most aftermarket flared mag wells
Lifetime warranty
Installation Instructions
Please check your state and local laws regarding magazine capacity restrictions.