Basic stats
Perk Weapon Damage: Perk weapon damage increased by 1% per level
Bullet Resistance: Resistance to projectile based damage increased by 5%+1% per level
Movement Speed: Movement speed increased by 1% per level
Recoil: 1% per level less recoil on perk weapons
Level 5 - Technique
Shoot'n'Scoot - Don't hang around to be eaten: Move 200% faster in iron sights with reduced weapon bob when using Gunslinger weapons.
Quick Draw - You know it: Increase weapon switch speed with Gunslinger weapons by 50% and quick draw spare pistols if you keep firing while out of ammo.
Level 10 - Skill
Rhythm Method - Rack up the headshots: Each consecutive headshot with a Gunslinger weapon increases your damage by 17% up to a maximum of 68%.
Bone Breaker - Don't just collect them, break them too: Inflict 20% more damage with Gunslinger weapons.
Level 15 - Advanced Techniques
Speedloader - Cooler, quicker, deadlier: Reload faster with Gunslinger weapons 20% faster AND look more elite while you're at it.
Penetration - Line 'em up and knock 'em down: Penetrate an extra Zed with every shot with Gunslinger weapons.'
Level 20 - Critical hits
Center of Mass - If you aim for the center of mass... shots to the chest with Gunslinger weapons have 40% more stumble power.'
Leg Shots - Or shoot them in the legs... shots to the legs with Gunslinger weapons have 3x more knockdown power when the Zed is sprinting.
Level 25 - Master Techniques
ZED TIME: Fanfire - Fanfire with fanfare: Shoot 3x faster with Gunslinger weapons in Zed time.
ZED TIME: Uber Ammo - Uber it up: You can’t run out of ammo with Gunslinger weapons during Zed time.