Was in a store today to window shop. Saw a new bushmaster M4A3. It was on the wall so I didn't examine it, but labeled below it said it was a Naval Special Ops barrel. It was an M4 profile barrel with litening cuts, looked like they were pretty wide cuts so that there were maybe only 4 of them? It also had an A2 type muzzle break, but since I didn't handle it, don't know if it's like what Kurt makes, or like RRA does with that press-on. It was advertised as "New", so they're claiming it's straight from Bushmaster. They wanted $899 for it and I'm considering digging it up quick cause if it's a new bushmaster.... It was also an A3 flattop with a 4 position removable rear sight on. First of that type of barrel I've heard of, and it does look aweful sweet.