Shield Arms +5/+4 Magazine Extension for Glock 17 / 22 Pistols

The Shield Arms +5/+4 Magazine Extension for Glock 17 / 22 Pistols adds extra rounds to your compatible Glock 17 and 22 magazines without compromising reliability. This mag extension is designed for drop-in installation with no permanent modifications to your magazines required. Aircraft aluminum construction offers maximum durability that’s perfect for quick mag swaps in competition or at the range, while the anodized finish stands up to long-term corrosion and wear. This mag extension adds +5 rounds to Glock 17 magazines and +4 rounds to Glock 22 magazines. Includes necessary installation hardware. Made in USA.

Fits Glock OEM factory mags, most aftermarket Glock-pattern mags, and standard and extended base pads.