The Agency Arms G17 Compatible 9mm +5 magazine extension is designed for 17rd magazines (Will not work with 10rd magazines).
- Compatible with the G17/17L, 19X, 34, 45
- Machined from 6061 MIL-A-8625 Type 3 Hard Anodized
- Dot Matrix Panel for Marking
- Chrome Silicon Alloy Spring
- Increases capacity by 5 rounds (9mm), 4 round (.40s&w & .357)
- Extended Ledge for one-handed manipulations
- Made in the USA