Best QD Suppressor Mount for 300BLK?

alpine44

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Mar 23, 2010
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North Carolina
I would like to add a QD mount to my 9" 300BLK pistol for a 1 3/8-24 hub compatible suppressor. What system can you guys recommend?

One option I am considering is a 45 cal 3-lug adapter and machining the barrel so that the adapter will be flush with the current muzzle. That would maintain the current storage length without shortening the barrel. The other advantage of .45 cal would be that I have no 3-lug guns in that caliber and this would avoid the .30 cal suppressor ending up on a 9mm 3-lug barrel.

Background: I live/hunt in the mountains of Western NC where the forests are thick and steep. The 300BLK pistol with a 2x prism optic has become my favorite hunting tool due to its ease of carry and more than sufficient accuracy for the relative short distances (<150 yard). The only disadvantage of shooting the pistol with cheek weld on the smooth buffer tube is the deafening noise from the short barrel. Hence the suppressor.
 
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If overall length is a thing, you could take a look at Wolfpack Armory; they make a recessed Plan B hub mount and flash hider that are super-short, or if you're going direct-thread, they have a recessed DT hub mount that actually pulls the can back over the barrel/threads.
 
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I messed with suppressors a good bit, mostly setting up other people's rigs to run them, but I just recently got a suppressor of my own and did a bit of poking around and talking to people regarding mounts.

Based on what I've seen and gathered talking to others, stay away from tri-lug if accuracy is a concern. I mean, apparently, on a sub gun, it doesn't matter much; but on something that you'll reach out with or require precision with, it won't do.

I've pretty much settled on the YHM SRX ecosystem, but that's only because it's what my suppressor came with and it has no downsides that I’ve seen that would turn me away.

Still, if I had to choose something, I would go Plan B. It seems to be compact and well thought out.
 
Here's my 300 BLK setup: 8" barrel, 7.3" handguard, Q Cherry Bomb, Wolfpack Armory Low Profile Plan B HUB adapter. I'm not really a fan of the Cherry Bomb wrench flats being on the muzzle but I got it second hand and just wanted something to hang the supressor on. It's ran 100% suppressed, as God intended for this cartridge.

Pics:
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Here's my 300 BLK setup: 8" barrel, 7.3" handguard, Q Cherry Bomb, Wolfpack Armory Low Profile Plan B HUB adapter. I'm not really a fan of the Cherry Bomb wrench flats being on the muzzle but I got it second hand and just wanted something to hang the supressor on. It's ran 100% suppressed, as God intended for this cartridge.

Pics:
View attachment 8676798
View attachment 8676799
A shooting friend of mine is running that setup with his Cobalt Kinetics suppressor. When I first looked at it, I thought it was a direct thread setup. It is indeed compact.

This is the SRX setup that came with my Fatcat.
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