SIG SAUER’s new line of silencers is nifty for many reasons, but one of the main reasons is that they are all about improving the way silencers and firearms interconnect. The typical way a thread-on silencer interfaces with a firearm is through a 90 degree shoulder at the end of the threads, which is okay but doesn’t always keep the silencer tightly locked onto the muzzle. SIG SAUER is trying to fix this by manufacturing their silencers and rifles with a radiused shoulder — increased surface area increases the friction between the parts, and keeps silencers from un-screwing mid firefight. And now they are releasing those technical drawings publicly.
For those who want to cut and thread your existing firearm to work with SIG SAUER’s cans, or for companies who want to allow their barrels to operate with the new line of silencers, these drawings are free to use. Enjoy!