Abstract: The apparatus of the invention is adapted to be used in a firearm of the type having a body having an interior space, a hammer supported by the body for movement, and a trigger for actuating the hammer. A strut member is located in the interior space of the body and has one end pivotally connected to the hammer. A capsule is provided having first and second ends and a spring means located therein. Opening means is formed at the first end of said capsule whereby the spring means may be compressed by applying force to the spring means by way of said opening means. The capsule is adapted to be supported by the body in a given position relative to the second end of the strut member whereby the other end of the strut member will apply force to the spring means, by way of said opening means to allow sufficient spring compression to occur such that the hammer will fire the firearm when actuated by the trigger.

Abstract: The apparatus of the invention is adapted to be used in a firearm of the type having a body having an interior space, a hammer supported for movement by the body, and a trigger for actuating the hammer. A strut member is located in the interior space of the body and has one end pivotally connected to the hammer. A movable bridge member, located in the interior space of the body, is coupled to the body for movement between first and second positions toward and away from the hammer respectively. The bridge member has an opening for freely receiving the opposite end of the strut member. A coiled spring is located around the strut member and has an end adapted to engage the structure of the strut member near its point of connection to the hammer and an opposite end adapted to engage the bridge member. An opening is formed through wall structure of the body in line with the bridge member.