Agency Mag Ext For G17 17rd +5 Blk

The Agency Arms Magazine Extension for G17 17-round magazines is a +5 capacity booster designed to increase magazine depth without requiring a full-size conversion. This machined aluminum extension transforms a standard 17-round Glock magazine into a 22-round platform, delivering increased ammunition reserves for duty, tactical training, or high-round-count range sessions. Agency Arms engineered this extension specifically for the G17 and compatible platforms, combining material science with field-proven ergonomic design.

Machined from 6061 T-6 aluminum with MIL-A-8625 Type 3 hard anodizing, this extension resists corrosion and abrasion in demanding environments—critical for operators working in coastal, humid, or high-salt conditions. The chrome silicon alloy spring maintains consistent feeding pressure across the 22-round capacity, while the extended ledge enables reliable one-handed magazine manipulation during tactical reloads or emergency situations. A dot matrix panel provides space for custom marking, witness holes, or inventory tracking on duty belts.

This extension suits patrol officers, tactical team members, competition shooters, and firearms enthusiasts who prioritize firepower density without sacrificing concealability or holster compatibility. Because it bolts directly to 17-round magazines and extends them vertically, it avoids holster re-fitting and maintains the natural draw profile of compact duty weapons. Made in the USA, it's compatible with the Glock G17, G17L, G19X, G34, and G45 platforms. Note: this extension does not function with 10-round magazines and is rated for 9mm, .40 S&W, and .357 SIG loadings depending on platform.