Why wouldn't they replace it? I see no warning on there web site that tells us not to shoot Remington gun clubs ?? I have purchased 5 - 22LR springs from them for my CZ's and Anschutz and a Browing Citori spring/firing pin kit and for 68 bucks shipped, I would expect them to replace a firing pin if it goes bad in the first couple weeks of shooting??? I Hope they weigh in on this??
I did hear the same story of pins braking from RIO's, I still think it is a bad piece of steel used for the pins?? I will say those springs they shipped for my Citori Plus were a lot longer and looked bigger in OD sized spring material. Made the 1992 Citori open and close like a NIB gun : Hope it shoots

I also purchased a set of springs and firing pins from Midway USA and the ones that the shipped were the same as J&P, for my field grade Citori, its a 1982.