Sear (firearm)

Aftermarket trigger companies, such as Bold, Timney, and Jewell, produce products in which sear contact is adjustable for personal preference.

Many firearms, such as the M1911 pistol, use a notch in the slide of the handgun that the top end of the disconnector returns to after the trigger is released.

On other handguns, such as the Series 80 version of the M1911, a firing pin block acts as an internal safety, which is disengaged by the disconnector after the trigger is pulled.

However, because of the spring tension placed on the disconnector by the firing pin block, the weight of the trigger pull is significantly increased.

[3] The term may be related to the French verb serrer, "to grip", and the noun serre, "claw, talon, grasp.