[wjkuleck]

Do some diagnostics. Break open the rifle. Remove the buffer and buffer tube. See if the bolt carrier slides in and out without "catching." If it does "catch," it should be pretty easy to see why. If not, see if the buffer (without spring) goes in and out without catching. If not (since the buffer is smaller in OD than the ID of the tube, I wouldn't expect it!), install the buffer spring and buffer, then see if you can push the buffer to the end of the tube without a hitch.

Oops, I see the post you generated between your immediately previous post and this one. Oh, well...

Regards,

Walt