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Bad holes?
fltopsvet
Member Posts: 7 ✭✭
I am curently building my own M4, have noticed a problem. When I have the bolt assembly in the upper, front pivot pin secured, and attempt to push in the take-down pin, it wont go in at all. The pin will go in either hole when the lower and upper are seperated, but together its a no-go. Any idea's?
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