Mounting screws for Lyman R25 sight

[Dimrod]

I recently acquired aforementioned sight for my model 25 rifle. I don’t have the mounting screws. What screws do I need to attach it to the plugged holes in the rear of the receiver? Any leads on where to find two of these?

Thanks.

[usabaker]

Its going to either be a 6-48 NS or 8-40 threads. Brownells https://www.brownells.com/ will have them

[fnfunkin]

I had the same issue with a used sight that came without screws. It's most likely a 6-48 or 8-40 thread, and I found replacement screws at Brownells without much trouble. Just verify the thread size before ordering to avoid damaging the receiver.

[Dimrod]

I’ve also read that it could possibly be 6-40 threads. I’m not sure how to verify the threads beforehand.