Let's have a look.

Gyrojet blaster-
A souped up blaster that creates small explosions(half the size of a proto bomb) per hit, but it can only be fired with a charged shot. The space knights commonly use this weapon.
Does normal damage. This weapon's recharge time is 70% quicker than other guns. Starts at 3*, each subsequent recipe up to 5* increases the damage and blast radius. It looks a little bit like a Bolter from WH40K.

Singularity cannon-
The bullets fired by this supercharged blaster pull in enemies as it flies, doing very small shadow damage as they are pulled. Can only fire charged shots.
It starts at 3*, but can branch off, like the antigua, to do more shadow damage, or do elemental damage instead. the pull effect is increased as it upgrades, and it charges quicker than most blasters. Compared to the other blasters, though, it's damage is quite pitiful, but the pull effect makes up for it.

Winbillion-
5* spur. Nuff said.

Moneyshot
a rare, 4* blaster with a VERY peculiar munition supply. Crowns. It's pretty powerful, but a single shot will cost you two crowns. A charged shot will cost you 8 crowns. The 5* version, Lodsemoneshot, increases the damage further. Also, If the killing blow on an enemy is from this gun, it might drop 2x more crowns. It's a bright green magnus with £ or $ signs on the side. (may or may not be a joke)

Shuriken blaster-
Fires small shurikens that can riccochet and do peircing damage. Can get pretty lethal in closed spaces, and may even cause self-harm. Best not use it in the Haven pottery shop, then. It looks like a small crossbow-thingy.

Post thoughts.