ATI M4-22 Magazine work well?

[Stephen83]

Do they work well in general? I've googled and searched here with nothing. Anyone have experience with them?

I'm running a CMMG dedicated upper with NFA LW15 lower. Does it work with the last round BHOA?

I know Black Dog X Form works but it ain't easy to get a hold of them.

Thanks!

[uxo2]

I gave up trying to tune my CMMG BHO.

For now I am using a Catch 22 BHO.
it is not a last round but I can atleast lock it back.
and if you have some 15/22 mags .
they can be made to work with it.

http://www.arcatch22.com/