GLOCK 19/23 Magazine EXT +5/+4 Gray

Boost your Glock 19 and Glock 23 capacity with the Shield Arms Glock 19/23 +5/+4 magazine extension in gray, designed to add +5 rounds for 9×19 mm Glock 19 magazines and +4 rounds for .40 S&W Glock 23 magazines without sacrificing reliability. This precision‑made base‑plate extension fits OEM Glock 13‑ and 15‑round magazines only, turning a standard 15‑round Glock 19 magazine into an effective 20‑round extended configuration and a 15‑round Glock 23 into a 19‑round magazine setup.

Constructed from high‑strength aircraft‑grade aluminum (7075‑T6) and finished with Type‑II hardcoat anodized gray, this extension delivers durability, corrosion resistance, and a low‑profile look that matches modern Glock‑style builds. The extension is USPSA 141.25 magazine‑gauge compliant, making it suitable for competition‑legal builds, and it ships with a +10% power spring for improved feeding performance under heavy use.

A unique easy‑access floor‑plate design lets you service the magazine spring and follower without removing the extension from the magazine body, simplifying maintenance during training, competition, or duty carry. The extension also works with Shield Arms and most aftermarket Gen 4/Gen 5 Glock 19/23/44 magwells, giving you a smooth insertion and positive seat even with longer magazines.

Key specs (extension):

• Model: Glock 19/23 +5/+4 magazine extension

• Added capacity: +5 rounds (Glock 19 9×19), +4 rounds (Glock 23 .40 S&W)

• Fits: OEM Glock 13‑ and 15‑round magazines only

• Material: Aircraft‑grade aluminum (7075‑T6)

• Finish: Hardcoat anodized gray

• Spring: Includes +10% power spring

Ideal for range days, competition, and duty‑focused Glock 19/23 builds, this gray magazine extension gives you extra rounds, faster reloads, and a clean, professional look.

By purchasing GLOCK 19/23 Magazine EXT +5/+4 Gray from our online store, you are guaranteed to receive a high-quality item. We work with trusted brands to offer shooting and hunting enthusiasts, both amateur and professional, quality products at a reasonable price. Choosing to buy from us means opting for quality and practicality

The actual appearance of the product may differ from the image on the website. For additional information about payment, delivery, and product specifications, please contact us by phone or email.