Out of curiosity, what are genuine unfired HK MP5K 3 lug and threaded barrels worth? I used one and have two others that I do not plan on selling. How unicorn are they? I knew they were rare and that's why I kept them, and will not sell them, but how rare are they? Just curious since this was being asked here.
Why do people buy the Sp5k and want to pull the barrel? The Sp5k/sp89 is a great gun but not necessarily the best to suppress. Consider getting a full size mke or have it sent to RDTS and make it an SD instead.
So I think that I've decided to just run my Zeniths w/cans and still sbr the SP5K. My main issue is that the K+stock was really just a prototype gun from HK.
B&T barrel is pretty awesome, but it's not HK. I'm sure at some point, I'll fold and get the B&T barrel. I just want a PDW from HK.
Honestly though, I've often considered the legitimacy of an HK gun that has been significantly mod'ed by a smith to be of questionable pedigree, but yet here I am considering doing just that.