Faxon Firearms

Faxon ARAK-21 Complete Upper 7.62x39mm 16"

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Faxon Firearms, ARAK-21, Complete Upper Receiver, Piston Operated, 7.62x39, 16" Barrel, Fits AR-15, Picatinny Handguard, Matte Finish, Black, Includes Bolt Carrier Assembly, MuzzLok 3 Port Muzzle Break and Standard Charging Handle

• Upper receiver is fully machined from an aircraft grade 6061-T6 aluminum billet in a one piece design
• Top picatinny rail is laser engraved for optic placement
• Long stroke variable setting gas piston system
• Three options for gas flow, and one for no gas flow
• Charging handle is ambidextrous, non-reciprocating, foldable, spring returned and is easily relocated from left to right side without tools
• 3 o'clock extractor position allows for easy swap between right and left handed shooting
• Self-contained firing pin retention system enclosed in a rectangular bolt carrier that no longer requires a cotter pin
• Recoil system does not extend beyond the upper receiver to fully operate allowing for easy install of a folding stock

The ARAK-21 is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard AR-15 platform. The total extent of the interface is simply the take down pin, and the pivot pin. The new ARAK-21 upper receiver offers you all its features with no change to your current lower receiver and can be installed in less than one minute with no tools. The BAU is comprised of the barrel, gas block, muzzle brake, gas piston, gas adjuster, and barrel trunnion. The only removable part of this assembly is the gas adjuster knob. The gas adjuster knob has 4 settings. Three of the settings allow different gas flows for optimum operation, and one setting blocks the gas flow for a single shot operation. The upper receiver includes the charging block, standard charging handle, lower forearm with screws, three aluminum full length picatinny rails, three insulating shims, bolt carrier assembly, lower recoil lug with spring guide rod, and dual recoil spring system. Due to the unique and innovative features of the ARAK-21 upper receiver, there are very few parts that are interchangeable with a standard AR-15. The firing pin, extractor spring, and ejector spring are the only parts that are standard and interchangeable with an AR-15 upper receiver.

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