how to increase gbb pistol power?

icepoint 准士官帖子 79 積分 2735 Like 0 來自 HK, SG 在線時間 274 小時註冊時間 13-7-2009 個人空間發短消息加為好友當前離線	1^# 大中小發表於 10-9-2009 16:42 顯示全部帖子 how to increase gbb pistol power? Hi all c-hing, i have a KSC Glock G23F. However it seems to be very low in power (not even 1-can face). Heard from some ching that some tuning need to be done at the magazine. However, i have no idea where to start, any special tools needed? thanks
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