I know the CMMG with a actual 22LR barrel works good with Black Dog magazines, until the magazine springs wear out. I have heard the S&W works like very good no personal experience.
Tippmann stuff has been top line in paintball and prior projects in 22LR.
I'm a little old to be out doing the paintball thing anymore but I still have a Tippmann paintball gun it's probably 25 years old or so. Kind of funny they was a gun company that moved to being a paintball company and I guess they are trying to move back.
.Attachment 63632
This is mine I assembled years back with light weight profile 22LR barrel. Currently wearing a QD 4 lug mount.