If it were "everyone, everywhere", we would make them. I mean, we make M15x1 CB brakes
In reality we've had maybe a half dozen requests over the last 5 years.
The only way this is might be feasible is if we had a sustained number of requests to justify another brake SKU and then we did an "untimed" SR brake with an internal shoulder (like our untimed CB brake), so people weren't messing with "internal" peel washers or shims.
There are a number of companies we love that still make things that are nonstandard to the rest of the industry and complicate suppressor use-- like muzzle threads that are 0.7" or longer, or jam-nut muzzle setups, or no relief cuts (and too big of root radius), and some that we don't love that do the same, like every hunting rifle manufacturer who thinks it's a great idea to use 0.5" or smaller threads on magnum hunting rifles, or ship anything with a BOSS, EVER.
