The lever is one of the six simple machines. Joining the screw, wheel and axle, pulley, inclined plane and wedge, a lever is generally any rigid bar that works in conjunction with a fulcrum or pivot point and is used to increase the force being applied to an object.

Now available from Keepshooting.com is the G3 sear trip lever. The sear trip lever is a part located in the G3’s trigger pack adjacent the hammer, around the hammer’s pivot pin. As the bolt moves back into battery after each discharge, the bolt carrier trips the lever, which in turn trips the sear and allows the hammer to be released again. The G3 sear trip lever is an original part manufactured by Heckler & Koch specifically for G3’s utilizing a fully automatic trigger pack. In semi-automatic trigger packs, the lever is not used.

For $3.95, you can get a replacement sear trip lever and ensure that your fully automatic G3 retains its rapid fire for years to come.