Some time back they 'corrected' some gear that used to buff the Kinetic Damage of this rifle by changing it to buff only physical (which isn't the same). But I don't know all the gear options that well especially since I haven't been playing for while.
So, basically the question in the title
Comments
I really can't think of anything else off the top of my head.
Then Imperial Navy Armor has been changed to affect only energy damage based secondary attacks from the tool tip. Blood of the Warrior may work, but offers a only a small bonus.
Looks like they were rather successful at removing all buffs for this weapon.
Set Powers
Set 2: Reactive Barrier
Reduce recharge time on all secondary weapon modes by 15%
Combine with Temporal/Commando Spec for really fast 2nd shot recharge times.
Protonic Kool-Aid Down The Drain Cruiser
Immortal BOff Skills combo for Ground
Now elite tactical drones, those take a few more shots to kill, and you don't want to get too close to them. Still fairly easy to take out with the TR, tho. The sniper shot takes a big chunk out of them.