FX Wildcat MK2 Question

You can use a two prong spanner to remove the rear end cap. Might need some heat applied to the cap first as it’s lock tighted from the factory. Then the piece inside will come out.

download the parts diagram from fx’s website to see what that part is. If it’s not under the wildcat MK2 schematics it’ll be in the barrel drawings, which is a separate set of drawings, just like the carbon fiber bottles are
 
I have spoken often with Utah and Thadias and also Travis usually. Very helpful guys and knowledgeable. I just want to through this out there. Have had multiple Wildcat MK2 in all calibers come through my home to another happy owner and never once did I have a loose bushing rattling around in the shroud. Not to say Thadias is incorrect on it being "normal", just information only.