That's a tough one.
If you ever want to change out the hg or barrel, you really can't use any threadlock on it, but then you'll have to keep a screwdriver handy to check after every so many rounds that it's still tight.
Take out screws - void the warranty.
Carefully remove just enough material to allow mount to slip through - possibly affect structural integrity and, by the way void the warranty.
Do you plan to run it really hard to where will it come even a little close to having warranty-required issues?
If not, set it up however you need to and go have fun.