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Discussion Starter · #1 · (Edited)
I've read numerous posts on here saying how it is not recommended to use 158gr Fiocchi ammo in the MP5K-N platform suppressed for various reasons like bullet weight or pressure. From what I can gather most of the comments center around the issue of the ammo having more pressure than the standard 124gr NATO ammo and causing some problems. The IMI 9mm 158gr ammo was over pressurized for use in the Uzi, however the Fiocchi 158gr is not over pressurized and less than the 124gr. NATO from what I've seen. In that case, if you use the #28 locking piece in the MP5K-N to slow the rate of fire down compared to the #100 or #110 would there be any potential issue with using the 158gr Fiocchi in the MP5K-N suppressed?

Is anyone running a #28 locking piece and using 158gr Fiocchi in their MP5K-N suppressed?
 
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