FX Impact MKII question?

Hey guys, I just received a new FX Impact MKII from UtahAirguns, but I'm a bit disappointed. I opted for the Donnfl Upgrade. The gun arrived with the top rail rattling (loose) and the donny moderator was on so tight that I was afraid that it might be stripped. So was the Shroud. 
But to my disappointment it appears that they swapped out the Shroud for the 1/2x20 UNF thread shroud. and they did not include the original FX shroud. Had I known they were going to switch the parts I would have never opted for that option.

My question is for the MKII owners, Is this the shroud that comes with the new MKII? My Impact "X" came with the M20x1 threaded shroud. Please let me know if this is correct? (The website list the MKII with the M20x1.)



Thank you!





 
I guess if that's how they come now? It is what it is.

My Wildcat MKII has the M20 and my older Impact "X" had the M20. I wonder why did FX Decide to go to the 1/2x20?

I have several moderator with the M20 threading I was hoping to use. 

As for the top rail being loose? Yes it's a simple fix of just thightening the rail but just makes me question quality control.

So if the gun was ordered with the upgrade DonnyFL it doesn't come with the Factory stacked moderator? I have additional sections from my other FX guns that are M20. 
Would the non-upgraded gun come with a 1/2x20 stackable moderator??
 
So UtahAirguns need to change the specs on their website because it says that all of the Impact MKII come with the M20x1 shroud thread size.

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My Impact MKII came with a 1/2x20UNF but it also came with an adapter. The moderator was the M20. I remember someone asking about it back right after I had gotten my gun, probably around May and mine was the only one set up this way. I thought that was kind of weird. I think Donny sells these little adapters, that would solve your problem.

Stoti

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