Made Nightie a big ol fuckin HANDCANNON. Kind of based off a Bolter gun design, obviously, but the weapon is smaller so only has 4 rounds per mag. And while they can have a small fission battery for a warhead, they would typically have Nightie's Brimstone gas in it; so in combat if could be used as a smoke-screen, a direct-impact weapon, or deploy his element in a wide AoE where he can manipulate the environment like forming portals/teleporting, shadow-tendrils/chains, long spears and other sharp solidified Brimstone shapes to make into weapons and damaging platforms in the midst of combat. Forward swing-grip for comfort/accuracy assistance. Upper/split vents so the launched Rocket-Rounds don't completely obscure down the sights, yet also provide a recoil reducer like a muzzle-break. Thumb-activated mag-release level.

Thoughts?