I found Delta P Design in, unfortunately, a non-shooting booth at SHOT Show 2015’s range day. They were showing off their BREVIS II line of suppressors, which are made entirely out of a single, monolithic piece of Inconel or titanium. No welds inside or out, no seams, no separate mounting parts. They are uniquely short and very lightweight, and available for 5.56 on up to .338 Lapua Magnum. While they are not serviceable, they are supposed to last the life of a typical barrel and the suggestion is to pretty much permanently mount them as you would any other muzzle device. I’d definitely like to use one on a. . .
.300 Blackout build. Permanently attach it to the barrel so the total length just hits 16″, and run it up against a handguard that matches its diameter. Considering the BREVIS II 7.62 is probably overkill in internal volume for .300 BLK — especially for subsonics — I might suggest to Delta P that they do their tiny 5.56 can bored out for the .30 caliber projectile and market it just for .300 BLK. Anyway, just spitballing here. While I’m making random suggestions, I may as well make a wild speculation about how these are made.
My guess is that they’re cast. Just a guess. Yes, you can cast titanium in a vacuum furnace.
Obviously there’s a downside in that these silencers effectively have a planned obsolescence since they cannot be serviced. Not always a big deal, but in an expensive product that also requires a $200 tax and a waiting period, it’s definitely going to be a barrier to ownership for a lot of folks. If “life of the barrel” is true then, sure, I could probably own that theoretical .300 BLK one for a decade and not wear it out. But I’d like to find out more about any degradation in sound suppression capability as the suppressor fills with carbon and lead over time.
With our man Joe Grine within two hours of Delta P HQ, we’re hoping a shooting range excursion is in their future.