I don't know the current price but.....
The Eagle mags were some of the only aftermarket mags to work, IIRC. I think they even made one that worked in the Mini 14 and the AR15. Don't own any haven't seen one in years, but there were reputed to work.
Johnwill give good advice....stick with USGI aluminum, followed by Thermold then Orlites. Orlites won't work in all Bushmaster lowers. Don't buy USA or any other brand.
I would be curious if they work for you. If they do (and everything I've heard about them suggests they will) you got a pretty good deal including the pouch. I can't remember the last time I've even seen one for sale, so there may be some collector value as well.
HTH
Jeff