I have a Scar 17 I want a Surefire Flash Hider, would the SF3P-762-5/8-24 be the correct one to purchase? Yes.
And to install, I remove every thing from the end of the barrel, muzzle break, jamb nut etc, and screw the FLASH HIDER right on and tighten her down with noting else. Correct? Yes
Does it have to be tightened to a certain inch pound? No
And use Rock Set as well? No