Quote Originally Posted by BUBBAGUNS View Post
All the orgianal M-16s (marked AR-15 on the receivers) I have shot, had been rebuilt by Crane with the C-7 style of uppers on them. I say build it with the C-7 upper.
^ same. I shoot south paw and just removed my colt slicky and installed a C7 on my 603 m16a1 clone. I had a Bushmaster XM177E2s that came with the C7 installed at the factory, saves the brass from clipping my right ear muff and eye.