You are correct, Padre. I used a local welder that does TIG welding, it cost me a 12 pack, and took him about 30 min. total. Much cheaper than taking to a GS who'll charge about 45-50 bucks for the same thing. If I had found this, a Battle Comp 2.0
which is a muzzle brake/compensator, and I think looks cool I'd have had it welded on instead.
http://battlecomp.com
If you've already got a 16" then you could get the 1.0 and be just fine as a screw-on device. However, with the 14.5 I needed the 2.0 to make it in the caliber I needed (6.8 SPC).