My bad. Had a bit of a brain fart again. I’d advise against the crazy jet for a gun designed for an AEG. Purely because I don’t rate the buckings you have to use. The barrel is very good, but the bucking I’m not so keen on.
The problem i had was the nub pushed the outside edges of the TNT TR hop bucking. To fix this I took some 800 grit sandpaper, put the nub on it and drag it dow the paper 6 inches. Check and repeat. It took me 3 strokes to get it completely flat.
Did you get the bucking with the fast chamber? Might be worth going to the standard barrel, that bucking and the prowler first