G&G UMP Feeding Problem ( shoots 2 bb at the time )
Hi, I got a UMP 2 months ago, but got some problem with shipping and fitting battery so... now, today, got my batt from WGC. Works just fine, but found out a big problem when I shoot with my UMP.
Shoot 2 BBs at a time. In semi and Full.
Can anybody help me on this one ? That would be very appreciated.
First time I got a UMP so... don't really know what the problem could be... !?
Thanks in advance ! :salute:
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