About to pull the trigger on a new SR556, but I still find myself thinking about the Sig 556 Swat Patrol. I have a Sig 556 SBR love the gun, but hate the sights. The gun eats every type of crap ammo I have fed and keeps going, but you are really limited on the sights, and other accessories. I would really appreciate some input from some who has had both guns. Is the SR556 as reliable as the Sig 556, do you think it well hold up as well, and who has the best deal on the SR556?