I left a message w/ DPMS to find out, we'll see if they call back. I've tried to get it off with a wrench but I don't know if it is LH or RH threads. I also want to know what threading they used so I can get other muzzle brakes or flash surpressors. Any help would be appreciated.
On a side note, I was able to get the front sight off tonight so I could take off the handguard to install the included sling swivel to mount a bipod. Why DPMS doesn't just install it at the factory is way beyond my comprehension. But because I couldnt get the flash surpressor off I wasn't able to completely remove the handguard from the barrel, so I had to drill it while on the rifle.