Harrington and Richardson "Bay State"

[greyfox2401]

My Grandpa gave me one of his old H&R shotguns and I'm having trouble identifying the model number as I think the barrel has a different serial than the stock

what i need is a new firing pin and the serial to the stock is B28XXX

[chubcobear]

May I suggest Numrich Arms? http://www.gunpartscorp.com/