I had a push-feed "Ranger" M70 in .223 for awhile. It was kinda nice, had a seven-round capacity down the magazine, IIRC.
It never shot like I thought it should, but that might have been me, hard to say. It did sure enough like SPSXs and Blitzes, though, and that's pretty endearing, those are cheap bullets and work great on groundhogs.

You can roll a turd in peanuts, dip it in chocolate, and it still ain't no damn Baby Ruth.