I’d like to say thank you guys for answering my question to the last post, now I’m decided, I’ll go with the MP5K for my HPA build, the question now is, who makes the best mp5k and has very little weight to it?, I’ve been doing some research and found H&K’s has their charging handles break easily so that’s a no go, unless someone can tell me if they had their experience be otherwise. I was thinking of maybe the Galaxy G.5K or the JG MP5K. Any recommendations for a brand for the MP5K?.