Pretty cool. Thinking about either a mini in 300 BLK or .308? And putting a Sig brace on it,with adapter of course. there is a new Sig clone brace that is slimmer in design.So...decisions.
After all these years I still love the XCR design. Thirty years ago I handled an FN FNC that was for sale new $795.00. I thought about it long and hard. A fellow student in one of my college classes. Was a venezuelen fighter pilot. And he told me that they had problems with the FNC. I really like my XCR-L with the KeyMod. Nice and thin. Once you transition to the RA XCR, you might leave it. But you will always come back to it.
I am expecting a lot of Bushmaster ACR owners switching over to the XCR, very soon. Bushmaster never came through on the caliber conversions and Femington isn't either.