I already have suppressors for my 300 Blackout AR and my 22 but earlier this week I picked up the Shiv from Stealth Additive Works. 3D printed titanium and only weighs 2.5 ounces so no booster/piston is needed. It ran 147 grain nicely on my P365 X Macro. I have not shot much pistol suppressed besides .22 but it did quiet it down to the point I didn't feel the need for ear protection.

Hey, congrats! I'm a big fan of the Shiv. There are other cans that are quieter, but they're twice the length and 3-4x the weight. I have shot a number of those quieter cans, and somehow as the shooter, the Shiv is quieter on a handgun than a lot of other cans. It just throws everything forward instead of back at your face. Backpressure is sound.

The Shiv on a Glock 43X is my most recent discovery. Really takes what is kind of a snappy little recoil impulse and makes it quite tame - pleasant, even. I'll bet on that 365, it's pretty nice.