#UpperReceiver

I was at Keith’s machine shop and saw this oddity. It is an AR-15 upper receiver with picatinny rails built into the sides. Both sides.

Burst Review spends time explaining the Wolf A1 Upper in detail. At last Big 3 East Media event, Wolf Ammo unveiled their Wolf A1 upper. Check out the post I wrote last October to refresh yourself.

While Adam S. covered the BCGs and AR barrels made by Faxon, he did not mention the Glock barrel nor Faxon’s AR upper receiver.

This subject has come up in my comments recently, and I thought I would explore it in a post proper. To adopt the 6.5 Grendel (or, as we’ll see, something like it), the US Army would need to develop and procure new complete upper receivers, magazines, buffers, and possibly other small components, as well as the ammunition itself. How much would that cost? It’s impossible to say for sure unless it happens, but with a little napkin-math, we should be able to get some idea: