ARAK-21® Features Components of the ARAK-21® Upper Receiver: 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. Your ARAK-21® upper receiver will be shipped to you with one “Barrel Assembly Unit” (BAU), or two, depending on which package you purchase. 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. Along with your new ARAK-21® upper receiver you will receive your owners manual, and two Allen wrenches that will fit the screws that attach the lower forearm, and the front picatinny rails. 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. Other features include: The upper receiver is fully machined from an aircraft grade 6061-T6 aluminum billet in a one piece design that incorporates a full length picatinny rail (Mil-STD-1913) on the top and three additional rails on the muzzle end of the receiver, making it a full M4 style quad rail upper. The top picatinny rail is laser engraved for optic placement. There are also half-length picatinny rails available. Long stroke variable setting gas piston system. There are three options for gas flow, and one for no gas flow. This allows for single shot operation. There is also a clean out port for the gas block between the gas cylinder, and the barrel. Charging handle is ambidextrous, non-reciprocating, foldable, spring returned and is easily relocated from left to right side without tools by the operator. Model “39” Eight (8) lug bolt design with involute profile for both right and left hand versions. The extractor is positioned at 3 o’clock. This allows for a left hand version to use the same bolt by simply removing the cam pin and rotating 180 degrees and reinstalling the cam pin. Self-contained firing pin retention system enclosed in a rectangular bolt carrier that no longer requires a cotter pin. Bolted in hardened steel rail system for the bolt carrier to ride on. This allows a metal on metal wear surface for better wear characteristics and a much smoother operation. The ARAK-21® system allows for a folding stock to be added, as our recoil system does not extend beyond the upper receiver to fully operate. This eliminates the noise and feel of the buffer tube cycling back and forth. ARAK-21 - 7.62x39 Upper Receiver Includes: ARAK-21 Upper - Black Ambidextrous Ejection 16" 7.62x39 Medium Barrel MuzzLok 3 Port Muzzle Brake Shipping Box Manual BAU Removal Tools
ARAK-21 7.62X39MM Komplett Övre Avtryckare - En revolutionerande lösning för ditt AR-15-system!
ARAK-21® är en gasdriven, komplett övre avtryckare som är designad för att sömlöst integreras med den standardiserade AR-15-plattformen. Denna övre avtryckare erbjuder en mängd funktioner utan att förändra din nuvarande nedre avtryckare och kan installeras på mindre än en minut utan verktyg.
Komponenter i ARAK-21® Övre Avtryckare:
- En “Barrel Assembly Unit” (BAU) som inkluderar:
- Rör
- Gasblock
- Muzzle brake
- Gasdrift
- Gasjusterare
- Barrel trunnion
- Gasjusterare med 4 inställningar för optimal drift.
- Inkluderar laddblock, standard laddhandtag, nedre förarm med skruvar, tre aluminium picatinny rails i full längd, tre isoleringsskivor, bolt carrier assembly, nedre rekyl-lapp med fjädrande guidepinne och ett dubbelt rekylfjädersystem.
- Ägarens manual och två insexnycklar för att fästa nedre förarm och de främre picatinny-rälerna.
Unika Funktioner:
- Fullt maskinerad från flygplansklassad 6061-T6 aluminium i en enstycksdesign.
- Inkluderar en full längd picatinny rail (Mil-STD-1913) på toppen och tre extra rails på mynningen.
- Long stroke variabel inställning för gasdriftssystem med tre alternativ för gasflöde.
- Ambidextrous laddhandtag som enkelt kan flyttas från vänster till höger utan verktyg.
- Åtta-lug bolt design med involute profil för både höger- och vänsterhandsversioner.
- Inbyggt system för retention av avfyrningspinne utan behov av en cotter pin.
- Bolted in härdat stål railsystem för bolt carrier vilket ger en metal-on-metal slityta för bättre slitstyrka.
- Systemet möjliggör installation av ett hopfällbart kolv, vilket eliminerar ljud och känsla av buffertuben som cyklar fram och tillbaka.
ARAK-21 - 7.62x39 Övre Avtryckare Inkluderar:
- ARAK-21 Övre - Svart
- Ambidextrous Utskjutning
- 16" 7.62x39 Medium Rör
- MuzzLok 3 Port Muzzle Brake
- Fraktlåda
- Manual
- BAU Borttagningsverktyg
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