Bear Creek .22 WMR AR-15 Upper
BY Herschel SmithTFB.

It’s compatible with AR-15 lowers, and with the package comes a magazine and buffer and buffer spring. The cost is $350.
I still think the wise move is to wait and get a feel for its performance (e.g., rimfire cartridges tend to get rim-locked, tend to be too weak to hold the slide back, etc.).
But I have to say that the price point is right. They haven’t overpriced the upper.
Being .22 Magnum gives the round significantly more oomph that can help with cycling.
Question to ask would be if it’s more reliable with a different buffer spring than used for 5.56.
I’m a big fan of .22 WMR and may just have to acquire one of these.
I have several Bear Creek uppers from 5.56, 300 BO, and 6.5 Grendel, all of them run great, and their side charging feature is awesome.