The Shield Arms Magazine Extension for Glock 17/22/34/35/45 adds 5 rounds to your Glock 17/34/45 magazine, and 4 rounds to your Glock 22/35 magazine.
Specifications
| Features | USPSA 141.25mm Magazine Gauge Compliant; Machined from billet 6061 aluminum; Adds 5 rounds; Index cuts for increased grip when reloading |
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