Abstract: An improved bolt, bolt carrier and barrel assembly for rifles is described. This invention provides bolt mechanism that has heavier lugs on each side of the extractor to distribute the forces more equally and reliably and thereby reducing firearm failure rate. Moreover, this invention provides a bolt system that is easily adaptable to different ammunition feed devices as well as different ammunition cartridges. This invention further includes a barrel having a barrel extension designed to mate to the symmetrical bolt head lugs of this invention.

Abstract: An operating system for automatic rifles is described which permits a user to easily remove and replace the bolt and bolt carrier from the rifle, without requiring the user to employ special tools. This invention permits the user to reconfigure the rifle to fire a wide range of different calibers of cartridges, as well as to reconfigure the rifle to feed ammunition from either the top or the bottom of the firearm. This invention further improves the reliability and decreases the manufacturing cost of the operating system by reducing the number of required components. This invention also provides an ergonomic, left hand sided, non-reciprocating cocking handle. The cocking handle assembly is provided with a slot cover which keeps debris from entering the interior of the rifle.

Abstract: A buttstock is described which contains an enclosure for storage of tools and parts, and which is totally accessible to the user through a butt plate held in place by a removable pin. This buttstock invention also has a sling attachment device which is designed to be positionable on either side of the buttstock, for either left or right side carrying and which cooperates with the butt plate pin to hold each in position. The sling attachment devices is relocatable with mounting points at various places on the stock to permit multiple user carrying styles. This invention affords assembly and disassembly without the use of special tools and therefore can be easily done by the user in the field. This invention is also preferably composed of a strong light weight material which is adapted for ease of use, is non-corrosive, and supports low cost manufacture.

Abstract: A weapon system is disclose whose design permits simple reconfiguration of the weapon to perform optimally in many configurations. By reconfigurations, the weapon can be configured to fire a wide variety of cartridges, including but not limited to 7.62.times.39 mm, 5.45.times.39 mm, 5.56 NATO, 0.45 ACP, 9 mm, 40 S&W, and 0.300 Magnum. This reconfiguration is accomplished by easily changing the following components: barrel; operating rod, recoil spring, and buffer; gas tube, bolt head, firing pin and extractor; and magazine well. The weapon can be reconfigured to accept a wide variety of cartridge feeding devices, including but not limited to AR15/M16 magazines, AK47 magazines, and a variety of ammunition belts and links. Also, the weapon system can be easily reconfigured to position a cartridge magazine either under the firearm or above the firearm.