Hi all, after much grief I managed to get my hands on a Surefire muzzle brake adapter for a new rifle build. I can't seem to get any help from Surefire on how to thread the barrel though. The brochure they include with the MB762-401R adapter doesn't have the exact 'Barrel Thread Matrix' drawing for all of the dimensions. The threads are M18x1.5, that's no problem; it's the other dimensions that aren't spelled out in the brochure. My gunsmith is about to give up on me. Any help or advice would be appreciated. I was planning on putting a FA762MG can on it if I can get the barrel threaded.
I have a new Lilja barrel and I'd hate to hose it. In an email Surefire tells me that the barrel can be no more than .830 for the first 2.75" of the barrel.
What I really need is a good drawing of how the barrel should be prepped for this particular adapter and a picture of how the adapter and can go together.
I have a new Lilja barrel and I'd hate to hose it. In an email Surefire tells me that the barrel can be no more than .830 for the first 2.75" of the barrel.
What I really need is a good drawing of how the barrel should be prepped for this particular adapter and a picture of how the adapter and can go together.