According to the catalog, the hammer and sear are MIM. I asked my local Master Dealer about replacing them (I was looking at the standard Protector, but I opted for the stainless, no MIM parts and it looks great!), he said it adds about $40 to the price, and estimated 4 months for delivery. He also said (and this was on 10/19) that Wilson was out of guns, and expected about an 8 week delay on ANY guns.