How does that 715T shoot, I've been debating on either getting one of these or the S&W MP. Either one with a slide fire stock and reverse muzzle brake should be a lot of fun.
the 715 doesn't use a standard style ar receiver instead it's just one big injection molded piece so i doubt there's a slide fire that would fit on it....on top of that i don't think there's enough recoil to make a slide fire function in the first place