Does anybody know if there are markings *somewhere* on Silencerco muzzle devices? I have about a dozen ASR muzzle brakes and flash hiders of assorted threads and diameters and it's hard to determine what is what without trying to mount them onto barrels and running rods through them. On the newer small Muzzlebrakes it has the threading marked at the base of the brake, but I can't find anything on the full sized flash hiders and brakes.