I just added a new item to the website, the NEA Brake Shield. They are available for 30 cal rifles with a 5/8-24 thread and 556 rifles with a 1/2-28 thread.
NEA Brake Shield: The body is made from suppressor grade 316 stainless steel. The muzzle brake is 4140 with a nitrade finish.
http://www.theammosource.com/index.p...ort=20a&page=3