This is my first question for the forum. I recently assembled my Mini using the BM59 brake to go with the gas cylinder. I seated the gas cylinder on the barrel and screwed the brake on the barrel. The brake passed the gas cylinder opening before stopping, so I backed it off to line up the hole for the gas plug.
My issue is the gap between the brake and gas cylinder after backing it off to line up, and it appears when I tighten the gas plug it pulls the brake down a little on the gas plug side making it not line up with the barrel slightly. Is this normal and can it be corrected?
I could try taking a little material off the bottom of the brake, but it may need machining to do it correctly.