Well, my idea for this is a primary weapon instead of making this a secondary weapon.

Pros:
No arc on shot
Right Click uses a second ammo bar that spews a quick burst of fire
Afterburn lasts 25% longer
Direct strike causes afterburn to be 30% longer instead of 25%
Cons:
No airblast
Flamethrower radius is decreased, and distance is smaller
-50% afterburn damage on flamethrower
Direct hits on target do no damage
Wearer cannot pick up health or ammo kits


[Untold Stats (stats dont show on weapon)]
Primary Ammo/Fireball Ammo [20 shots [3 in clip]
Primary can fire a shot every .5 seconds
Reload on fireball takes 1.5 seconds per ammo
Small Explosion radius
Secondary Ammo/Flamethrower Ammo [100 ammo (flamethrower)]

This weapon stat idea is made for an afterburn focused weapon, that has range, and can be combined with other secondaries for intresting combos, with a weak flamethrower to allow for spychecking, which is a major role in a pyros gameplay, and removing that would clear the weapon of any usefulness as a primary weapon, as a pyro main who uses the shotgun,this is a great idea to make a ranged weapon that doesn't use the secondary slot, focused more on afterburn instead of popping someone in the skull for massive base damage, and all of the primary weapons for pyro in tf2 are flamethrowers, so its a good idea to mix it up in my opinion, i know this is really long but you know what, im really bored so i am doing this.

Im not really good at making weapon ideas and making things balanced, so feel free to hate comment or change it up with better ideas, like removing or adding stats to this.