I'd go the hardware store route. If I could get an extractor for my 1894 at the hardware store, I wouldn't have bothered to call Marlin for a new one. If you look in the 1894 section of the forum, you'll see my posts about the problem. They ended up sending me a new extractor (I haven't gotten it yet but it's supposed to be in the mail.) but I really had to talk the customer service rep into it and only after she consulted with a tech. Put the bolt in your pocket, take it to the hardware store and paw through the roll pins. You might not find one that fits perfectly but I bet you will get close. From the responses I've gotten from others here, there are a lot of guys who don't mind sending guns back but having shipped a lot of guns in my day, I avoid it like the plague. Some things you can't fix but this is just a roll pin. By the time you pack up the gun and bring it for shipping, you can have it back up and running.