Thought it was a about time to start a review for this shop. While this isn't really a storefront at all, Harry (the owner) is a top notch military surplus gunsmith in the Saugus, MA area. From what I'm told his specialty is high end machine guns, but I've had him do a few projects for me now...
Lantac dragon muzzle brakes are extremely hard and black nitride QPQ treated , the reason northeast doesn’t want to do the job is because the only way to drill through it is with a carbide bit , using carbide runs the risk of the bit breaking , especially when starting on the curved surface of the outside and then again when it breaks through the threaded area on the inside , been there , done that
We would rather not chance being the shop who destroys your $100 plus dollar muzzle devise with a busted carbide bit inside it
there’s a reason why these brakes were sold at one time with a pin hole already in them , it’s literally the only muzzle devise we won’t do