I'm in the early stages of building a 204 Ruger AR-15 for prairie dogging next year, and for barrel manufacturers I'm looking at Shaw and Wilson Combat. I like what I've read about the Wilson barrels, but they're OOS with no known restock date. Shaw also seems to have a good reputation but i'm less familiar with them.

Any other manufacturers I should be checking out? I am planning on using a can with the rifle, so threading is a must.

My Shilen barrel is impressively accurate. Definitely worth the extra cost but they are even more pricey now. You may need an adjustable gas block for the 204.