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. . .