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Faxon Firearms ARAK-21 Complete Upper Receiver Up to 12% Off, Clearance w/ Free Shipping — 3 models

OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
1 of 26 images
OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
2 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
3 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
4 of 26 images
OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
5 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
6 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
7 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
8 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
9 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
10 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
11 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
12 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
13 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
14 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
15 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
16 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
17 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
18 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
19 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
20 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
21 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
22 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
23 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
24 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
25 of 26 images
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
26 of 26 images
OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND

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Questions & Answers
Customer Reviews
Helpful Positive Review One of The Best Piston Ars by Payle Ryder, Verified Owner, March 17, 2024
Been researching piston uppers for years and by far the best ive found is the arak21. Came within a week of ordering. Fits any mil spec ar lower. The adjustable gas block makes this a perfect system for suppressors. The long strong piston also reduce...
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Product Info for Faxon Firearms ARAK-21 Complete Upper Receiver

The ARAK-21 Upper Receiver 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 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.image

WARNING: California`s Proposition 65

Specifications for Faxon Firearms ARAK-21 Complete Upper Receiver:

Manufacturer: Faxon Firearms
Overall Length: 21.5 in
Barrel Profile: Medium
Gas System Length: Rifle Length
Barrel Twist Rate: 1-8
Handguard Style: Quad Rail
Attachment/Mount Type: Picatinny
Gun Rail: Quad Rail
Gun Type: Rifle
Gun Make: AR Platform
Gun Model: AR-15

Features of Faxon Firearms ARAK-21 Complete Upper Receiver

  • Ambi Non-Reciprocating Forward Charging Handle
  • Ambi Safety/Selector
  • Bufferless System
  • Quad Rail
  • MuzzLok Muzzle Device
  • Variable-Setting Gas System
  • Self-Contained Firing Pin Retention System
  • Steel Rail System for Bolt Carrier
  • Caliber Conversions Available

Package Contents:

  • Faxon Firearms ARAK-21 Complete Upper Receiver
  • ARAK-21 Upper (As Ordered)
  • Shipping Box
  • Manual
  • BAU Removal Tools
  • Bolt(s) And Firing Pin(s) for Ordered Calibers
  • Recoil Spring(s) for Ordered Calibers

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Faxon Firearms ARAK-21 Complete Upper Receiver Orderable Models

List of Orderable Models

OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND , MPN: URSSB556-OP-SND , UPC: 816341028098 , Code: 11I-URC-SDF2-URSSB556-OP-SND
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P , MPN: URSSB762P , UPC: 816341025615 , Code: 11I-URC-SDF2-URSSB762P
Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P , MPN: URSSB556P , UPC: 816341025608 , Code: 11I-URC-SDF2-URSSB556P
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