I use Griffin Armament muzzle devices on my rifles (when I am not using a standard flash hider).  I recently built a 12.5 inch upper for a pistol and want to use a Griffin muzzle device.  I've recently bought taper mounts in case I buy a suppressor in the future (I would get the Optimus if I ever buy one).  That said, I'm not sure which device to use for the pistol.  I'll mainly be shooting outdoors, but could use it for home defense as well.  I bought a flash comp in 2013 and really like it.  The style of those have changed.  I don't know if I should use the hammer comp, flash comp, a flash hider, or a linear comp.  Looking for input for anybody who has used any of these on a shorter barrel.  I'd like to use a comp, but I'm not sure if it will be too loud on a short barrel.  The flash comp I bought years ago isn't very concussive on a 16 inch barrel.

I use the standard 2-port comp on my 11.5" barrel. Hopefully will wear away the comp before the suppressor.

just dont stand next to the rifle when shooting, lol

I have the current design taper mount flash comp on my 10.5” 5.56 and it works fine for me.  Guy in the shooting stall next to me wasn’t too thrilled, though.  A short barrel is going to be loud, period.  The only thing that will make it less noisy is putting a can on, it it will only be less loud, not quiet.

I ended up buying the Tactical Comp for this pistol upper.  Again, I couldn't find a lot of reviews on their muzzle devices other than the M4SD flash comp.  I did see where Griffin stated these Tactical comps have less concussion on shorter barrels than their other comps...so, I'll see.  I mated the upper with another pistol lower for these photos.  The upper receiver is BCM with a BCM 12.5 inch barrel and 11 inch LaRue M-Lok hand guard.