Liipaisimen

Liipaisimen is Finnish for the trigger, the lever or switch that initiates discharge in a firearm or other device. In firearms, the liipaisin connects to a sear and hammer or firing pin; when pressed, it releases the sear, allowing the hammer to strike and ignite the cartridge. The trigger's design influences pull weight, travel, and reset, factors that affect aiming and control.

Common variants include single-stage triggers, where a short, consistent movement releases the sear, and two-stage triggers, which involve an initial take-up followed by a moment of increased resistance before release. Many triggers are adjustable for pull weight or travel within legal limits and firearm type. Some firearms also incorporate safety features such as manual safeties or firing-pin safeties integrated into the trigger mechanism.

Outside of firearms, the term liipaisin may be used in Finnish to refer to other triggering devices, such as camera shutters or industrial switches, but its primary context in Finnish is the firearm trigger.

In Finnish firearm regulation and industry literature, liipaisin denotes the component that initiates discharge and is discussed within safety standards and legal requirements for handling and modification.