S-Series Extensions

A Shield Arms S10 magazine with the +2 extension pre-installed: 12 rounds, ready to load. For Shield grip-chopped Glock® 43X and 48 pistols. Requires a steel mag catch. Made in the USA.

A Shield Arms S10 magazine with the +5 extension pre-installed: 15 rounds, ready to load. For Shield grip-chopped Glock® 43X and 48 pistols. Requires a steel mag catch. Made in the USA.

Adds 2 rounds to the Shield Arms S10 magazine, taking it from 10 to 12. Billet 6061 aluminum with an easy-access floor plate for cleaning without removing the extension. Made in the USA.

Adds 5 rounds to the Shield Arms S10 magazine, taking it from 10 to 15. Billet 6061 aluminum with an easy-access floor plate for cleaning without removing the extension. Made in the USA.

Takes a Shield Arms S15 magazine from 15 to 25 rounds in the Glock 43X/48. Billet 6061 aluminum with a 15-coil power spring and easy-access floor plate.

The Shield Arms S15 +2 Magazine Extension adds 2 rounds to your S15 magazine, increasing Glock 43X/48 capacity to 17+1. Machined from billet aluminum with lifetime warranty.

The Shield Arms S15 +5 Magazine Extension adds 5 rounds to your S15 magazine for a total of 20 rounds. Maximum capacity for competition, home defense, and range use. Lifetime warranty.

Shield Arms +10 mag extension for the S15 magazine.

Save time with our factory pre-installed S15 +2 Magazine Extension featuring 17+1 capacity for Glock 43X/48. Precision-machined aluminum construction with lifetime warranty and Spring for Life guarantee.

Our patented S15 Gen 3 magazine with the +5 extension and a 12-coil power spring pre-installed. Holds 20 rounds of 9mm in the Glock 43X and 48 and arrives ready to load. Remove the extension and swap the spring to carry it flush at 15. Requires a Shield Arms steel mag catch. Made in USA.