Knife, Switchblade

This knife has a spring-loaded blade hidden inside the handle.

Source: Pathfinder d20pfsrd.com

This weapon is treated as a dagger.

• Special: This knife can be designed to look like another type of object (a DC 15 Perception check reveals the deception).
• Action: If held in your hand, you can activate it as a free action.

Light Melee Weapons (Martial)
Weapon	Cost	Damage (S)	Damage (M)	Critical	Range Increment	Weight	Type	Special
Knife, Switchblade	5 gp	1d3	1d4	19-20/x2	10 ft.	1 lb.	Piercing	–

Source Adventurer’s Armory