The Shield Arms Magazine Extension for Glock 19/23 adds 5 rounds to your Glock 19 magazine, and 4 rounds to your Glock 23 magazine.
Specifications
| Features | Machined from billet 6061 aluminum; Adds 5 rounds; Index cuts for increased grip when reloading; Fits OEM Glock 13 and 15 round magazines only |
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