Barrel upgrade

[Cheapshot]

Finally had the time to mount the Monster 20 barrel today... after months. Flattened the receiver face which needed a touch-up. Fiddled with the nut to get everything lined up, reworked the nut a few times, then put it all back together.
Nice barrel, and a heck of a lot lighter than the heavyweight that was on it. Very educational. I'm ready for a ground up build. My bank account is not.