Q: It appears that their is a drilled hole at the base so it can be pinned. Is this correct, and if so does it come with the pin? If it doesn't, what size is the pin hole? I'm in Commifornia and need to pin and weld it to the barrel to make it legal. Thank you.
A: It is our presumption that the hold is there to be useful when pinning to a barrel. We've not seen a pin included from SLR. For answers relating to optimal pin size and/or material we suggest that you may be better served asking the manufacturer directly. Thanks for the inquiry.