Good luck with it. Should be fun.

I did want a .222 all that time, but settled on my first .223 as that was what turned up.

The barrels for this thing sell within a day of being advertised.

I bought my gun and two barrels from an A R member years and years ago from Texas. I think he may have passed on since (?).

Some barrels from luv2safari here on NE.

Maybe a barrel (or not) here in Australia.

I used to see say a shotgun being sold once or twice. One time for $1100 for the gun with shotgun barrels only. A good price. One could always try to add barrels later.

As the barrels need final fitting for a frame, my guess is you can't switch them from frame to frame without some fitting.