quote:

Originally posted by hrcjon:
I assume that a MK10 is 10mm? That complicates life. In 9mm HK 3 lug is the standard and its simply what you should use. In other calibers there really is no standard. Rugged makes a B&T compatible .45 3 lug (I use that). SO to me the best answer would be the Rugged .45 3 lug and the associated Obsidian .45 3 lug. I have done some other solutions on my 10mm B&T but since you already have the obsidian the .45 trilug would be what I would do.

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Griffin's EZ-Lok

quote:

Originally posted by Dwill104:
There are Griffin Cam-Lok and Ez-Lok pistons for the Obsidian 45. They also make the associated muzzle devices in .578x28. I use them with the Obsidian 45 on a LWRC SMG-45. Initially used cam-lok, but went to ez-Lok when it came out, because it’s a little easier to align and get on and off. Note that the system uses the booster piston, so if you use it on a fixed barrel, you need to replace the piston spring with a fixed barrel spacer.

As for using three-lug, note that three-lug adapters and muzzle devices are different for .45 and 9mm. If you want to use your can for different PCCs in both calibers, you’ll need adapters for both calibers (I.e. don’t use a .45 3-lug adapter on a 9mm 3-lug muzzle).

quote:

Originally posted by hrcjon:
There are way more than two options as lots of other taper mounts besides griffin can be configured to work. That said me personally I am not a huge fan of the fixed barrel spacer situation but in reality everyone mfg offers one and there are not lots of complaints about them. Dwill104 on the LWRC needs a booster so that really doesn't apply in your case.
I am not sure what you mean by the "(or smaller). For what you are doing with Rugged parts you need the .45 trilug for the obsidian and the .45 trilug muzzle device.

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Originally posted by hrcjon:
OK I get it. Obviously (and this is your case) you can run anything less than .45 through the ,45 3lug and the can. What is a configuration that won't work for you is you can get a 9mm trilug for the obsidian 45 (which is something I actually do) and run it on 9's. Not ok on 10's.

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Originally posted by hrcjon:
No issues on 3 lug with straight in and turn you don't need any movement off the axis of the barrel. No idea on handguard.

quote:

Originally posted by P220 Smudge:
Pistol cans don't get as hot as rifle cans. I think a couple inches of inset isn't going to make much difference. If you're burning it down so much the can is smoking, the whole gun is going to be hot enough you're gonna want gloves anyway.

Did a suppressed "subgun" shoot last weekend with some friends. One of them has a CMMG Banshee with a Midwest rail that's at least several inches longer than his barrel. He has a tri lug setup, and while we didn't shoot a ton out of that gun, the heat wasn't a problem. Mind you, it was 111 degrees out and my black hard sided rifle case that got left in the sun was too hot to handle, but everything in the shade was all reasonably cool to the touch. Again, pistol cans.