Any Ideas on leaking LCS SK-19?

My .25 SK-19 has been a leaked since day one, it will go drop 50-75 bar in ~24 hrs. Anyone have any ideas I have a gen 2, and 5 Huben and there is a lot in common but this is a stubborn leak too slow to find easy #$*&^%^^&^&^!!! Hoping someone else with a leaker that fixed it might be able to give me some clues...

Also quick question is the vented piece between the 2 bbl raisers supposed to rattle and be loose it seems kind of chintzy

And is there supposed to be a cover on the new pistol grip they are using? It seems odd to put one on that has 2 brass threaded inserts and then leave the cover off with them showing it makes it look really cheap and unfinished :-/

Just a heads up if you are looking to get one they are in a beta 1.5 stage I would guess.... so just be aware I was not expecting so many assembly scratches and dings at this cost but it is low volume mfg...so far jury is out on shooting my Hubens outshoot it so far. It beats them on shot count, sound, and fun... not build quality or accuracy.

ANY LEFTY owner out there I would love to get the original pistol grip they stopped shipping!!!
 
Mine was perfect from the factory. No leaks, scratches, dings or loose fitting trim. If yours leaks send it back and tell them while they are at it fix the dings, scratches and sloppy trim piece as well. The gun is top tier it should be near perfect when you get it there is no excuse for it to be any other way. Assembled in the USA with some USA made parts. GRRR...