Mass is evil.....Depending where you are in NH, another option is Mitch Mateiko/Brookfield Precision Tool. He knows his way around the M14...
Located in Brookfield, MA.
Thats getting warmer....only a couple hour drive....it was so easy in Maryland.....several good folks all within an hour of Balt/DC...I never thought I would say anything was easy about Maryland and Firearms......The closest that I can recommend is Gus Norcross in Wiscasset, ME. He has done work on one of my M14's that was very well done at a reasonable price. He specializes in service rifle work, and is an ex-National Guard team armorer as I recall.
Yes, we do have an AWB which basically means you can't have a flash suppressor (but a muzzle brake is fine), a collapsible stock and you can't buy the gun with more than a 10rd magazine...BUT, if said gun is of a type made before the ban you can stick a high capacity magazine in it if you are so licensed. It also bans the use of "y'all" in any for of communication... GI7Mass is evil.....
I avoid Mass with Firearms at all costs.
IIRC Y'all still have an AWB in effect don't you?
I was hoping to walk into a shop and avoid shipping....and if I did that in Mass I believe it would be a felony without an FID/LTC