But your friend needs to diversify.
There isn't a single 1911 with a rail in the bunch. He needs to correct that deficiency!
I told him if he gets a railed 1911, I'd have him neutered! There are some things you don't do to a 1911. Hell, I don't even like skeletonized triggers and FCSs. :)
He has plenty of other HD/SD pistols/revolvers... Sigs, HKs, Walthers, Berettas, six Pythons, a Korth, etc. I think his night stand HD is a P220.