I was trying to find Stainless ones a few weeks ago and had no luck.
Yesterday I received my new Brownells #4 (1911) Catalog and right there on the 1st page (new items) is Stainless ones from EGW.
Here are the Brownell's part numbers for ya:
G.I. Style Guide Rod (EGW 1911 Auto)
296-000-113 1911 S/S GOVT. RECOIL SPRING GUIDE - 21.95
296-000-114 1911 S/S COMMANDER RECOIL SPRING GUIDE - 21.95
A bit pricey but they are solid Stainless Steel (not hollow).
So, no longer do I have to see that Blue or Black Guide rod when I disassemble my Stainless Pistol. That may seem a bit anal to some, but it really bothered me........
