So my Scoundrel/Commando has both a Carbine with a Foregrip and a Sling, and a Nova Viper with a Blaster Actuating Module and a Laser Sight.
I'm running into the problem of anything the carbine can do, the blaster pistol does better. And true, the Nova Viper is bamf, but even comparing a heavy pistol vs a carbine, the carbine just doesn't having anything like the pistol's BAM or the Spin Barrel that rifles get to really let them have a niche.
So using the attachments that have been put out there so far, please give me your best set ups for the carbine, but without leaning on talents to even things up, just parts and mods.