I saw an off duty police officer working a security shift at a local barbecue restaurant a couple years ago who had a pistol with a slivery slide. I said, "What kind of pistol is that?"
"Glock 27!" he said.
"Oh!" I replied, "I've never seen a Glock with a stainless slide.
"The barrel is stainless. The slide is nickle", he said
"Oh, I see", I said. "At first glance I thought it might be one of those new Taurus Millennium pistols."
"No...it's not!", he replied. I think he was really ticked off at me.
* * *
I think all Glocks should be black. Otherwise, they look cheap. The best finish for a Glock slide is a black teflon coat. Talk about sweet! I think I'll eventually get my Glock 30 teflon coated and get a stainless barrel with a stainless guide rod.