Just seeing this now. lmfao. Just an FYI still on the hunt for a good 10mm MP5. I keep seeing the same Cohaire one on GB. I reached out to blackopsdefense and they had informed me that it was almost impossible to find a factory MP5/10 parts kit. They had recommended .40 S&W. I then reached out to Brethern Arms and noticed that they make some 10mm variants that seem like high quality pieces. If anyone ever finds a FACTORY HK MP5 10mm parts kit please let me know. Heck... I will most likely throw in a finders fee as a good faith gesture.
Can you get a 10mm bbl from HK ? If so, is building one with a .40 lower kit possible? I know that would not be a factory build but it would be close....and all HK