Nicely done, I did the same a few months ago and put the same muzzle brake on. I wish I would of seen this post before I did it. I had a hell of a time putting the FSB back on and I had to pound the crap out of the original FSB pins. When I shot it the aim was off. I don't use a scope so I had to get a front sight tool to sight it in. I think I put it on a cunt hair crooked but it shoots great now. I did notice the 74 muzzle break was louder, but recoil was reduced.