Faxon ARAK-21 Complete Upper 16in 5.56 NATO Tungsten Cerakote URSSB556SSW
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Overview
Faxon Firearms ARAK-21 complete upper receiver system (Sports South exclusive) in Tungsten Cerakote.
Machined from a billet monolithic aluminum upper receiver and forearm housing, the complete upper drops onto any mil-spec AR-15 lower using standard takedown and pivot pins.
Key Features
- Patented long-stroke piston system with dual reciprocating operating rods to keep gas out of the action for cleaner, more reliable cycling.
- No buffer tube required: self-contained recoil system is within the upper receiver; rifle cycles with stock fully folded.
- Tool-less caliber conversion: barrel assembly unit (BAU) integrates barrel, trunnion, adjustable gas system, and piston; 5.56 NATO to 7.62x39mm conversion via separately sold conversion kits.
- Fully ambidextrous design: tool-less reversible non-reciprocating forward charging handle, and reversible bolt with dual ejection ports for left- or right-side ejection.
- Exclusive Tungsten Cerakote finish on the upper receiver and lower handguard plate (warm, medium-gray).
Specifications
- Brand: Faxon Firearms
- MPN: URSSB556SSW
- UPC: 816341029422
- Caliber: 5.56 NATO / .223 Remington
- Barrel length: 16 in
- Twist rate: 1:8
- Muzzle thread: 1/2x28
- Muzzle device included: Faxon MuzzLok Ported Brake
- Gas system: Detented 5-position gas regulator (reduced, normal, adverse, cut-off, disassembly) adjustable with a cartridge tip
- Charging handle: Non-reciprocating forward charging handle (tool-less reversible; left or right side)
- Bolt: 8-lug star pattern (AR-15 inspired)
- Barrel finish: QPQ nitride
- Carrier rails: Hardened QPQ steel
- Top rail: Uninterrupted MIL-STD-1913 Picatinny
- Buffer tube required: No (self-contained recoil system)
- Finish: Tungsten Cerakote (Sports South exclusive)
- Convertible: Yes (5.56 NATO and 7.62x39mm; BAUs and conversion kits sold separately)
- Lower compatibility: Any mil-spec AR-15 lower with standard takedown/pivot pins
- Weight: 8.5 lbs
- Length: 36 in
- Country of manufacture: USA
Warranty
Faxon Lifetime Guarantee
Specifications
- Manufacturer:
- Faxon Firearms
- Category:
- upper-receiver
- Caliber:
- 5.56x45mm NATO
- Platforms:
- AR-15
- Interfaces:
- Muzzle thread: 1/2-28MIL-STD-1913
- Weight:
- 141.6 oz (8.85 lbs)
- Length:
- 36.0"
- UPC:
- 8258555773050
- MPN:
- URSSB556SSW
- Required Component:
- Yes
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