Part of the problem is that the barrel of the compensator doesn't form a straight line with the body of the scope. Even removed from the chassis, there's a noticable "kink" in it. It's subtle but it's one of those things your eye immediately goes to because no real gun – at least, not one that isn't damaged – has a bent barrel like that.Can you not add a shim under the scope, just before it reaches the compensator?
Like, between your printed part and the underside of the scope...
I should have paid more attention during assembly, but since I was gluing it to a painted scope, I was more worried about not getting epoxy all over the paint job.
I was going to let it go, but I showed it to my girlfriend last night (without saying anything about what was wrong) and she immediately caught that the barrel was crooked. So I soaked it in acetone overnight and was able to pull most of it apart this morning. I did some damge to the front part of the scope in the process and I've DMed Field Marshal about buying a replacement for that part. I don't fancy buying am entire m38 kit over again just to replace one part.