Keep it or help out a buddy

I had a Kart barrel and bushing fit up to my Colt GCNM by Derr Percision( great customer service, btw).  As it turns out a friend of mine somehow bulged the barrel in his Gold cup and mention he was in need of a barrel. Should I offer him up mine( which is like new)? Or should I keep it with my original gun? If so what is a fair value?
Thnx Brad

There is the thought that if you keep the barrel you can restore it for "collector value".  But there really isn't much premium for Gold Cup series 70 and 80 pistols.  They made so many.  There is for the pre-Series 70 guns so if it's one of thos....

Maybe your buddy should also consider sending it off to have a proper barrel fit job...

Give it up.
Support the sport.

If you give him yours, how would you feel if he bulges that one too? I assume he bulged the first one with his own reloads?

We shot together yesterday, I offered it to him, but he has decided to have it rebarelled. So that takes care of that! Lol Thanks for the input for those who responded.