PNYprepper
30 Jan 2014
GSG 522 MODS AND REVIEW
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In General
Update of my GSG 522 . Review and Mods that I did to improve its performance.
Watch my other mods to this gun :
GSG 522 Extractor mod http://youtu.be/P3Vrht7jNAE?li....st=UUhrw0-xiWDSBmCKd
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