Shield Arms S15 +5 Magazine Extension – Gold Finish for Glock 43X/48

The Shield Arms S15 +5 Magazine Extension adds five rounds of capacity to your S15 magazine, bringing a Glock 43X or 48 to a total of 20 rounds (15+5) in a flush-fit profile. This extension is designed specifically for use with Shield Arms S15 magazines and maintains the slim profile that makes these pistols popular for concealed carry while significantly increasing firepower.

Machined from aluminum with a gold anodized finish, this extension installs without permanent modification to the magazine. Installation requires disassembly of the magazine baseplate and replacing the factory follower spring with the included longer spring. The extension adds approximately 0.6 inches to overall magazine length. Basic tools and careful attention to spring tension during reassembly are required—follow manufacturer instructions closely to ensure reliable function.

• Part Type: Magazine Extension
• Compatible Firearms: Glock 43X/48 (with Shield Arms S15 magazines only)
• Material: Aluminum
• Finish: Gold Anodized
• Capacity Increase: +5 rounds
• Installation: User-installable with basic tools, magazine disassembly required
• Includes: Extension body, extended magazine spring