A barrel having a monolithic body, formed of an elongate structure extending from a breach end to a muzzle end; a projectile bore extending from a projectile chamber to the muzzle end; and a sleeve material positioned around at least a portion of the barrel to encompass at least a portion of the barrel, wherein the sleeve material includes filler particles embedded or dispersed within the sleeve material.

A human transported weapons system is comprised of a barrel, a targeting subsystem, a computational subsystem, positioning means, and, a firing subsystem. The barrel is movably mounted within a stock for propelling a projectile towards an area of sighting. The targeting subsystem identifies a chosen target in the area of sighting and locking onto the chosen target at a first time. The computational subsystem, responsive to the targeting subsystem, determines where the chosen target is, and determines where the projectile needs to be aimed to strike the chosen target at a firing time. The positioning means, adjusts the position of the barrel within the stock, responsive to the computational subsystem. The firing subsystem, activates firing at the firing time to propel the projectile through the barrel at the chosen target at the firing time. The locking onto the target can be either: responsive to target selection by the person; or, responsive to determining which of the targets in the area of sighting is a best shot of the available targets.

A rifle includes a magazine well, a barrel, an exo-bolt, and a rear magazine support. The barrel is detachably coupled to the magazine well. The barrel includes a forward barrel portion on an end of the barrel opposite the magazine well. The exo-bolt is configured to travel along an exterior of the barrel. The rear magazine support is coupled to the magazine well and opposite the barrel. The rear magazine support is configured to come forward toward the barrel and be secured in a plurality of distances from the barrel to adjust a length of the magazine well.

A handguard assembly for a firearm includes an outer member disposed forward of an upper receiver of the firearm where, a barrel nut disposed within the rear cavity, and at least one alignment member. The outer member includes a rear cavity and a threaded portion. The at least one alignment member contacts both the outer member and the upper receiver for alignment.

A handguard assembly for a firearm includes an outer member disposed forward of an upper receiver of the firearm where, a barrel nut disposed within the rear cavity, and at least one alignment member. The outer member includes a rear cavity and a threaded portion. The at least one alignment member contacts both the outer member and the upper receiver for alignment.

An armorer's wrench can include an elongate wrench body having an implement end structured and configured to define a plurality of wrench interfaces, and a handle end opposite the implement end being structured and configured to define a handle shape with a molded grip. The plurality of wrench interfaces can include at least one of a barrel nut wrench and a castle nut wrench, and the handle end can be devoid of wrench interfaces. The armorer's wrench can further include a plurality of hammer heads, hammer head storage, and a hammer head receiver. The handle end may be structured and configured to provide the hammer head storage, and the implement end may be structured and configured to provide the hammer head receiver. Each of the plurality of hammer heads may be structured and configured to securely and releasably attach to the hammer head receiver and to the handle end.

A breech for a pistol including a barrel, which includes at least one barrel block and one chamber, as well as a slide and a breech guide, which is designed to move on a guide rail of a frame of the pistol and on which a socket having a breech face is formed. In order to increase the mechanical stability, the barrel block includes at least one recess on each side, which interacts with centering rails that are provided on the inside of the breech guide and are formed to be complementary to the recesses in terms of form and function.

A fixture for use with AR15/M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15/M16 type barrel nut, as well as other designs as disclosed herein.

A fixture for use with AR15/M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15/M16 type barrel nut, as well as other designs as disclosed herein.

A modular handgun system comprises an elongated universal trigger frame having a barrel locking block, a pair of slide rails, and an accessory rail. The trigger frame is adapted to have a trigger assembly mounted thereto. The system further comprises a grip frame having an elongated channel and a hand grip extending downwardly from the elongated channel. The trigger frame is removably mounted in the elongated channel of the grip frame. The accessory rail of the trigger frame is positioned forward of a forward end of the elongated channel of the grip frame so as to be exposed. The system further comprises a slide and barrel assembly slidably mounted on the slide rails of the trigger frame.