Discount Guns in Beaverton had some the other day for $20. I'm going to Gun Zone later and I could tell you if they stock them as well
AR15SPORT.COM, AR15,M16, M4 parts and accessories. They are in Sherwood, and I know they have toooons of them.
Saw some at discount in Beaverton, guy working said they didn't have a ton of interest in them. Thought that seemed odd with the knee jerk reaction buyers now.