
Availability: In Stock
The Shield Arms Mag Glock 19 +5/4 Extension combines smart engineering with practical design for shooters who want more rounds on tap without changing guns. This 15-round 9mm magazine fits Glock 19 and Glock 23 pistols and ships with the +5 extension already installed—giving you five extra rounds compared to factory capacity. Built from billet 6061 aluminum and finished with Type 2 anodizing, it's durable enough for serious range work, competition, or defensive carry.
What sets this magazine apart is Shield Arms' thoughtful approach to maintenance. The unique floor plate design lets you access the spring and follower quickly without detaching the extension from the magazine body. That means faster cleaning, easier spring replacement, and no fussing with assembly—exactly what you want when you're prepping gear before a match or range day.
Shield Arms backs this magazine with a 100% lifetime warranty and their Spring for Life guarantee, so you can trust it to perform. The included +10% power spring is tuned to handle the extra capacity reliably, giving you confidence that rounds will feed when it counts.
| Capacity | 15 rounds (9mm) |
| Compatibility | Glock 19, Glock 23 |
| Material | Billet 6061 aluminum |
| Finish | Type 2 anodized black |
| Extension | +5 pre-installed |
| Included Spring | +10% power spring |
| Warranty | 100% lifetime; Spring for Life guarantee |
Yes. The Shield Arms Mag Glock 19 +5/4 Extension is specifically designed for Glock 19 and Glock 23 pistols. The extension comes pre-installed, so it's ready to load and use out of the box.
Absolutely. The floor plate design allows you to access the spring and follower without removing the extension from the magazine body, making maintenance faster and simpler than typical magazine designs.
The +5 extension increases your Glock 19 capacity by five rounds, giving you 15 rounds total compared to the standard 10-round factory magazine.
The Shield Arms Mag Glock 19 +5/4 Extension includes a +10% power spring, tuned to ensure reliable feeding at the extended 15-round capacity.




SKU: 144596559 • Width: 4in • Height: 1.25in • Depth: 11.25in • Weight: 0.31oz





Availability: In Stock
The Shield Arms Mag Glock 19 +5/4 Extension combines smart engineering with practical design for shooters who want more rounds on tap without changing guns. This 15-round 9mm magazine fits Glock 19 and Glock 23 pistols and ships with the +5 extension already installed—giving you five extra rounds compared to factory capacity. Built from billet 6061 aluminum and finished with Type 2 anodizing, it's durable enough for serious range work, competition, or defensive carry.
What sets this magazine apart is Shield Arms' thoughtful approach to maintenance. The unique floor plate design lets you access the spring and follower quickly without detaching the extension from the magazine body. That means faster cleaning, easier spring replacement, and no fussing with assembly—exactly what you want when you're prepping gear before a match or range day.
Shield Arms backs this magazine with a 100% lifetime warranty and their Spring for Life guarantee, so you can trust it to perform. The included +10% power spring is tuned to handle the extra capacity reliably, giving you confidence that rounds will feed when it counts.
| Capacity | 15 rounds (9mm) |
| Compatibility | Glock 19, Glock 23 |
| Material | Billet 6061 aluminum |
| Finish | Type 2 anodized black |
| Extension | +5 pre-installed |
| Included Spring | +10% power spring |
| Warranty | 100% lifetime; Spring for Life guarantee |
Yes. The Shield Arms Mag Glock 19 +5/4 Extension is specifically designed for Glock 19 and Glock 23 pistols. The extension comes pre-installed, so it's ready to load and use out of the box.
Absolutely. The floor plate design allows you to access the spring and follower without removing the extension from the magazine body, making maintenance faster and simpler than typical magazine designs.
The +5 extension increases your Glock 19 capacity by five rounds, giving you 15 rounds total compared to the standard 10-round factory magazine.
The Shield Arms Mag Glock 19 +5/4 Extension includes a +10% power spring, tuned to ensure reliable feeding at the extended 15-round capacity.
SKU: 144596559 • Width: 4in • Height: 1.25in • Depth: 11.25in • Weight: 0.31oz



