Provided is a trigger assembly that helps prevent malfunctioning of trigger assemblies in firearms. This is accomplished by the expedient of a convex curved projection on the upper surface of the actual trigger of the trigger assembly. Interfacing with this convex surface on the trigger is a mating concave curved projection having a surface with a radius that is similar to the radius of the trigger's concave curved projection. The trigger's concave curved projection extends relatively downwardly from the bottom side of the actual hammer of the trigger assembly. The relationship of the trigger and the hammer of the trigger assembly provides a trigger/hammer interface when the convex curved projection of the trigger is proximate the concave curved projection of the hammer. In this trigger assembly there is a captive disconnector having a disconnector engagement stabilizing projection formed as a portion of the disconnector. The stabilizing projection is generally opposite from the portion of the disconnector having a hook or small ledge where there is contact between the projecting elements of the disconnector and of the hammer. This disconnector engagement stabilizing projection limits the travel of the disconnector interfacing projection of the hammer from moving away from the disconnector engagement location of the trigger assembly.

A firing mechanism for a firearm includes a frame; a barrel attached to the frame and including a conical taper at a rear end of the barrel; a chamber attached to the frame and including a central bore through a center of the chamber and a conically tapered counter bore at a front end closest to the barrel; and a spring in the central bore to force the chamber backward.

A firing mechanism for a firearm includes a frame; a barrel attached to the frame and including a conical taper at a rear end of the barrel; a chamber attached to the frame and including a central bore through a center of the chamber and a conically tapered counter bore at a front end closest to the barrel; and a spring in the central bore to force the chamber backward.

A handgun includes a barrel which extends in a longitudinal direction, and a breechblock with a breechblock insert. The breechblock insert can be brought into a first state and into a second state where, in the longitudinal direction of the barrel, the second state has a play which is greater than a play in the first state.

A handgun includes a barrel which extends in a longitudinal direction, and a breechblock with a breechblock insert. The breechblock insert can be brought into a first state and into a second state where, in the longitudinal direction of the barrel, the second state has a play which is greater than a play in the first state.

A firing mechanism for a firearm includes a frame; a barrel attached to the frame and including a conical taper at a rear end of the barrel; a chamber attached to the frame and including a central bore through a center of the chamber and a conically tapered counter bore at a front end closest to the barrel; and a spring in the central bore to force the chamber backward.

A firing mechanism for a firearm includes a frame; a barrel attached to the frame and including a conical taper at a rear end of the barrel; a chamber attached to the frame and including a central bore through a center of the chamber and a conically tapered counter bore at a front end closest to the barrel; and a spring in the central bore to force the chamber backward.

A method of firing a firearm includes rotating a trigger to force a latch pin lever to move; forcing a latch pin forward by the latch pin lever to force a cylinder forward toward a barrel; sealing or substantially sealing the barrel and the cylinder; and releasing a hammer to strike a cartridge while the barrel and the cylinder are sealed.

A method of firing a firearm includes rotating a trigger to force a latch pin lever to move; forcing a latch pin forward by the latch pin lever to force a cylinder forward toward a barrel; sealing or substantially sealing the barrel and the cylinder; and releasing a hammer to strike a cartridge while the barrel and the cylinder are sealed.

A grenade launcher may include at least one barrel for receiving a grenade, a support for releasably mounting the grenade launcher to a carrier, and a receiving slot receiving a removable primer cartridge. The primer cartridge when received in the receiving slot may hold a primer in position for firing the grenade in the barrel.