I bought the firing pin from Brownells, downloaded the instructions, then decided no to do it. For $16 I sent it to H&R (now Remington) repair, and told them that it had over 5,000 rounds through it. They replaced the firing pin, firing pin spring, barrel catch spring, and cleaned it up real nice. I had it back in 3 weeks. no charge. You gotta love these guys.
Frank