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Faxon Firearms ARAK-21 Complete Upper Receiver Up to 29% Off, Blazin' Deal w/ Free Shipping — 3 models
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OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
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OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
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OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
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OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
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OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
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OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
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OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in, 5.56, URSSB556P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P
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Questions & Answers
Customer Reviews
Helpful Positive Review
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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18/19 found this helpful
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Helpful Positive Review
This upper is an interesting addition to my lineup. In short, consistent groups with a con of weight.
Out of the box I had fitment issues. Takedown pins were about a millimeter off. After getting over my initial irritation, i broke down the upper an...
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10/10 found this helpful
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Helpful Positive Review
Bought the Faxon ARAK-21 upper and the second I attached it to my aero lower, my rifle grew a third eye and started humming the national anthem. It’s not a gun anymore it’s a portal. The recoil feels like a butterfly farted and the charging handle te...
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2/2 found this helpful
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Helpful Positive Review
A part of me wants to give this 4 stars. Only because it is advertised as having the ability to quickly change barrels. However finding the shorter or 300 BO is not available anywhere currently. That and the "sand" tone doesn't really match the FDE. ...
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2/4 found this helpful
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Helpful Positive Review
Out of the box, the quality of this upper is exceptional. The milling, finish, design, and function are top shelf. I own many piston uppers and I consider this upper to be the all-around best. I hope my range fire experience is as positive as the un...
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1/2 found this helpful
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Most Recent Reviews
I purchased an ARAK-21 12.5” 5.56 upper, and I’m honestly pretty disappointed. First of all the accuracy is pretty atrocious. It’s a real struggle to get a group under 8 inches at 100 yards with a 4X scope and Xm193 ammo, from a bag. It does slightly...
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Final Stretch of 2025 Begins Now! Special Pricing for Faxon Firearms Products
Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
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List: $999.00Save 13%
$873.13
List: $1,199.00Save 29%
$852.86
List: $999.00Save 13%
$873.13
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Product Info for Faxon Firearms ARAK-21 Complete Upper Receiver
This Faxon Firearms ARAK-21 Complete Upper Receiver is gas piston actuated and designed to seamlessly integrate with your AR15 platform. Faxon Firearms built these AR15 Upper Receivers with an ambidextrous charging handle and safety selector to suit both left and righthanded marksmen. Machined from aircraft-grade aluminum in a one-piece design, these AR15 uppers are incredibly durable and are compatible with folding stocks. The top Picatinny rail is T-marked for precise optic mounting, and the three additional rails make it a complete quad rail upper that can be customized with weapon lights, laser sights, and other accessories. With no change to your lower receiver, you can instantly install the ARAK-21 without the use of tools. Create your perfect AR platform with the Faxon Firearms ARAK-21 complete upper.
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 |
| Gun Rail: | Quad Rail |
| Gun Type: | Rifle |
| Gun Make: | AR Platform |
| Gun Model: | AR-15 |
| Condition: | New |
| Magazine Included: | No |
| Mount Type: | Picatinny |
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
- Shipping Box
- Manual
- BAU Removal Tools
- Bolt(s) And Firing Pin(s) for Ordered Calibers
- Recoil Spring(s) for Ordered Calibers
Faxon Firearms ARAK-21 Complete Upper Receiver Orderable Models
List of Orderable Models
- Faxon Firearms ARAK-21 Complete Upper Receiver, 12.5in 7.62x39, URSSB762P , MPN: URSSB762P , UPC: 816341025615 , Code: 11I-URC-SDF2-URSSB762P
- 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, 5.56, URSSB556P , MPN: URSSB556P , UPC: 816341025608 , Code: 11I-URC-SDF2-URSSB556P
Faxon Firearms ARAK-21 Complete Upper Receiver Unavailable & Discontinued Models
List of Unorderable Models
- USED, OpticsPlanet Exclusive Faxon Firearms Complete Upper Receiver, ARAK-21, 16in, 5.56, MuzzLok, Sand, URSSB556-OP-SND , MPN: URSSB556-OP-SND-EDEMO , Code: 11I-URC-SDF2-URSSB556-OP-SND-EDEMO-RE-B
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