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Old 20th November 2013, 03:00 PM
Akita Akita is offline
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Join Date: Sep 2013
Member of: Greyhound & Purley Chase
Location: UK
Posts: 188
Default AR20 Transfer port grub screw?

Ive been having very wide spread in FPS like 30-40fps so i decided to look at the TP screw and the screw is only 5mm long?
Looking at the diagram here its part number 14 and it should be M4x20 so it should be 20mm long?
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