mp7a1 problems
Ok guys, I have an odd problem with my mp7a1. I have nineball spring, cylinder head and piston head in it. It shoots fine when its warm but I tried to shoot it when it was -1 to -5 Celsius outside and the bbs just rolled out the barrel. I didn't leave it outside and let it get cold or anything, I just walked outside and tried to shoot. My battery was full and I tried it with two different batteries and a hicap mag and a midcap mag. Any thoughts??
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Current Arsenal
Primary: CA M15A4
Secondary: Custom TM Hi Capa 5.1
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