Re: Looking to get a Qloader
The stock ball stop should work fine. No mods to your marker are needed.
You'll have to take the largest mounting ring and form it around the foregrip. Once you have that done, just trim the tube to length, and you're good to go.
One helpful hint, put a gear clamp on the neck where it attaches to your marker....they can fly off if bumped....spewing forth all your balls. Just don't tighten it too much(it is only plastic after all).
There is a pic of an MR1 with the qloader floating around the threads somewhere (: