Just a heads up, I have one of the latest XCR's in .223 that is basically a $2600.00 paperweight to me right now! I had about 165 rounds of Winchester factory ammo through mine and thought I would strip it down for a cleaning and inspection,well I'm glad I did as I had a bad barrel.
I found some pitting in the bore between the chamber and gas valve,it actually looks as though some of the rifling was missing or the chrome bore peeled.
My dealer contacted the distributor,they said ship it back as they have barrels instock,so they shipped it out on Apr 1 Xpresspost, as of tonight my f**king barrel has not be shipped back to me yet!
The only other peeve I have with my XCR is with the way the lower receiver and upper are slightly misaligned,the upper sits about 1.5mm to the left at the rear.
Hey its non restricted though!