I've done a fair amount of searching, but I've only found one place that offers a .17 remington upper (Accuracy Systems). Does anyone else offer one? If not, where can I get a decent barrel in .17 Rem. Thanks in advance.
I've seem several (either barrel mfg or custom mfg):
I've bought from Teppo Jutsu (Marty ter Weeme)a 458 Socom upper and was very happy.
I'd also do a search on A15 barrels.