Pretty much this. But i'd also suggest to take the flash hider, the muzzle flash is incredibly blinding on this gun, especially during the night. The increased cone of fire during sustained fire is noticeable only after 7-8 shots, but usually you are either close enough that it doesn't matter or you stop shooting anyway to not waste all ammo on a moving target. I love the T1S and it is my all-rounder of choice, but if i know i'll get in a long biolab fight the TRV makes me much more strong than that.
