"Rocko"Making your own is a very rewarding experience. I have made my own regulators, shrouds & many other things. Friends have said I should make & sell these things. BUT, people don't realize the time involved & one mistake and you have to start over. Its just not profitable unless you have CNC equipment that reduces time and makes many operations easily repeatable. Its fun to make your own, but sometimes it makes more sense to just buy it.
I don't know what a mag. for a Cricket costs, but I doubt it would be profitable the make & sell.
Nice job on the mag. by the way, have fun & be careful.