I have a 1980's Colt Sporter II, fixed carry handle and pencil barrel. This is not a SP1 or SP2. Upper releases with a push pin in the back and a two sided flat head screw on the front. Will a new LE6920 complete upper fit on my old lower? Found one at a good price but can't try it before I buy...thanks in advance.
Originally posted by bluecoat: I have a 1980's Colt Sporter II, fixed carry handle and pencil barrel. This is not a SP1 or SP2. Upper releases with a push pin in the back and a two sided flat head screw on the front. Will a new LE6920 complete upper fit on my old lower? Found one at a good price but can't try it before I buy...thanks in advance.
Please post some pics of both assemblies. Especially of the front pivot areas on both left and right sides.
“Elections have consequences, and at the end of the day, I won.” – Barack Hussein Obama, January 23, 2009
Posts: 2199 | Location: Austin Texas USA | Registered: February 03, 2007
My 1985-ish vintage HBAR Sporter has the two-sided screw in front. You can get a replacement screw that has an offset hole so that a newer upper can be mounted on it. I have one at home and have used it successfully. IIRC it only cost a few bucks.
Posts: 7484 | Location: Idaho | Registered: February 12, 2007
When you purchase current production complete Colt uppers (assuming they are new out of the box), they come with a small kit to make them work on the older, large pin hole lowers.
Does your Colt lower have a sear block? If so might also have a problem with newer bolt carrier from the LE6920. Besides the issue with front pivot diameter.
When you purchase current production complete Colt uppers, they come with a small kit
I've bought at least 5 complete in box current production Colt uppers and none of them came with these parts. I didn't need them so I don't care, but I would certainly verify this.
“So in war, the way is to avoid what is strong, and strike at what is weak.”
