The best thing about those two models is that you can have it on there, and it will be compatible with a can if and when you get one. I have not had a chance to shoot a AAC but I shot a few Surefires and they are awesome brakes.
__________________ Assumption is the mother of all ****ups. Know what you know, Know what you don't know. -Paul Pedzolt "Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul
Due to the recent flood of people buying ar parts and accessories, the upper I planned to buy is out of stock and can't find one I want anywhere. So, i found the vltor VIS upper with the rifle length rail system without the barrel, and went ahead and got It on order, since theres no telling when it could go out of stock. Now to find me a mid-length barrel that I want!
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
US Army 1966-69, VFW Life Member, Retired Geek