3rd Gen Black Dog Machine AR15.22 magazines?

[Chris Rhines]

Okay, I have a Tactical Solutions AR-22 dedicated .22LR carbine. I do most of my rifle practice with it. Cheap ammo, light, etc., etc., blah blah blah...

I'd like to get some more magazines for it. What's the word on the 3rd Gen Black Dog Machine AR15.22 magazines?

Also, I have heard that it's possible to modify the rifle/magazines/something to allow the bolt catch to function. Anyone out there know any more about this?

Thanks much,
Chris