Abstract: A system and method for attaching a muzzle attachment to a firearm. The muzzle attachment has an attachment body that is defined by an inner surface having a bore along the central axis of the muzzle attachment. The attachment body may include a threaded portion extending a length along the inner surface configured to engage a threaded portion of the firearm. The attachment body includes a lock that is configurable from a retracted configuration to an extended configuration. In the extended configuration, the lock is configured to securely engage a recess of the firearm. By threading the muzzle attachment onto the firearm and engaging the lock with the recess, the muzzle attachment system resists removal of the muzzle attachment from the firearm. The muzzle attachment may include vents. The muzzle attachment system preferably is indexed relative to the firearm for proper operation of the muzzle attachment during engagement of the lock.

Abstract: A firearm includes a manual safety assembly. The manual safety assembly includes a first manual safety lever that is removably attachable to a second manual safety lever. Each of the manual safety levers includes a lever portion and a connection portion that extends transversely from the lever portion. A blocking lever extends from the connection portion of the first manual safety lever so that the blocking lever is substantially parallel to the first manual lever portion. The manual safety assembly is coupled to the firearm so that the manual safety assembly may be configured in an engaged position in which the blocking lever inhibits movement of a trigger bar of the firearm to prevent the firearm from firing. The manual safety assembly may be moved into a disengaged position that allows movement of the trigger bar.

Abstract: A firearm includes a manual safety assembly. The manual safety assembly includes a first manual safety lever that is removably attachable to a second manual safety lever. Each of the manual safety levers includes a lever portion and a connection portion that extends transversely from the lever portion. A blocking lever extends from the connection portion of the first manual safety lever so that the blocking lever is substantially parallel to the first manual lever portion. The manual safety assembly is coupled to the firearm so that the manual safety assembly may be configured in an engaged position in which the blocking lever inhibits movement of a trigger bar of the firearm to prevent the firearm from firing. The manual safety assembly may be moved into a disengaged position that allows movement of the trigger bar.

Abstract: The present invention teaches about a separable magazine follower situated into a magazine body. The magazine follower includes a magazine follower body and exchangeable magazine follower plate. The upper surface of the plate tooth can engage a slide stop lever tooth after the last round is fired from the magazine, and moves a slide stop lever in position that holds a slide in the rear position. The magazine follower plate can be exchanged by the new one after being depleted. The magazine follower plate is not permanently secured to the magazine follower body, but it is nested into the magazine follower body and secured via a magazine spring. The magazine follower plate is formed from material of lower hardness than the material used for slide stop lever tooth in order to prevent its excessive wearing.

Abstract: An ammunition magazine with an improved base locking, including: a hollow magazine body, a follower, a spring and a magazine base. The magazine body is equipped with track guides that correspond to grooves embodied on the magazine base, that the magazine base is guided onto. The spring is spirally embodied such that the first turn fully encompasses the surface of the magazine base and in the compressed state the rest of the spring, without the first turn, can fully fit into the follower pressed by the spring. The magazine base has a catch on one side and a hole positioned next to the catch. The magazine body has a slit allowing the catch to pass unobstructed into the magazine body and catch the detent spot on the spring positioned inside the magazine body. An advantage is improved safety of magazine base locking to the magazine body and simpler construction.

Abstract: An ammunition magazine with an improved base locking, including: a hollow magazine body, a follower, a spring and a magazine base. The magazine body is equipped with track guides that correspond to grooves embodied on the magazine base, that the magazine base is guided onto. The spring is spirally embodied such that the first turn fully encompasses the surface of the magazine base and in the compressed state the rest of the spring, without the first turn, can fully fit into the follower pressed by the spring. The magazine base has a catch on one side and a hole positioned next to the catch. The magazine body has a slit allowing the catch to pass unobstructed into the magazine body and catch the detent spot on the spring positioned inside the magazine body. An advantage is improved safety of magazine base locking to the magazine body and simpler construction.