My brand new stainless Colt Series 80 Gold Cup came with a silver plastic mainspring housing. Rest of the pistol was stainless. I was fortunate to find a stainless AMT Hardballer mainspring housing at a gun show and installed it. I trashed the plastic POS. :grr:

"Stainless steel" is a misnomer; 'rust resistant' is the proper term. ;)

If anyone else "needs" one, Brownell's has them available for about $40.

I was astonished when I realized that Colt had put plastic on that model!

Colt plunged into the depths at one point. Crappy tissue thin cardboard boxes with a thermo blown interior that would split if you even looked at it. One magazine only sold with each gun. Some models had plastic mainspring housings, plastic magazine followers, plastic recoils spring guides, Plastic recoil spring end caps, etc.

It has gotten somewhat better.