Which mount?

[Hump66]

For those of you familiar with the AAC SPR/M4 suppressor, which mount should I use on which barrel? And why? Barrels are 18" rifle gas, and a 16" mid length gas.
I have 2 of these:
[Broken External Image]

And 1 like this:

 

[338Shooter]

Do you want flash control or recoil control shooting unsuppressed?

 

[Hump66]

I know the function of each, and the best flash control is with a suppressor. If you were in my shoes, which ones would you use? The 18" will rarely, if ever, be shot unsuppressed.

 

[338Shooter]

With the can on the mount used is irrelevant except on short barrels. Brakes go great on SBRs to help protect the blast baffle. Anything 16" or longer you decide if you want flash suppression or recoil control and use that mount.

 

[Hump66]

You wouldn't happen to have any extra shims for these would you?

 

[338Shooter]

nope.

 

[bsmith918]

You wouldn't happen to have any extra shims for these would you?

I might. Send me a pm and I'll take a look.