KJW M9 rolling bb's
I have a KJW M9 Berretta which has been giving me grief. If I chamber A bb it rolls it out the barrel as soon as I tip it downwards. I assumed it was a hop-up issue. I carefully examined the gun to determine that it has in fact, no hop up system. So I am wondering if anyone else has had this problem, How did you fix it, or am I just blind? Any help would be greatly appreciated!
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