I have an old Colt Lightweight Sporter that I bought used back in 1992. It is a good weapon but it has the old style skinny barrel that heats up with firing causing the shots to string vertically. I have thought about getting it rebarreled but I think I would prefer an all new flat top upper so I could used some new style optics.
Any suggestions as to makes or models of good new flat top uppers in .223?
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July 21, 2010, 04:01 PM
You might ought to do some measuring on that lower before you buy anything.
Colt had a bad habit of using non-standard takedown pin hole sizes & hole spacing there for a long time on civilian AR lowers.
If it's one of those, no standard upper will fit it without resorting to a off-set front pin bushing, or screw-together off-set pin.