The FAXON FIREARMS ARAK-21 Complete Upper Receiver (brand part no. URSSB556) is chambered in .223 Rem/5.56 NATO with a 16-inch, Nitride-finished medium-contour barrel.

Key Specifications

• Chambered in .223 Rem/5.56 NATO.
• 16-inch barrel length, which meets the federal minimum rifle-barrel length.
• 1:8 twist rate.
• Overall length: 36.3 inches.
• Finished in Nitride for wear and corrosion resistance.
• Medium-contour barrel profile, per its listed configuration.
• Ships as a complete upper.
• Built for the ARAK-21 platform.
• Sold under Faxon Firearms.

Frequently Asked Questions

What platform is this built for? It is built for the ARAK-21 platform.

Is this legal barrel length for a rifle? Yes, at 16 inches this barrel meets the federal minimum rifle-barrel length.

Does this include a lower receiver? No, this is the complete upper only; a compatible lower is required to complete a firearm.

Buy the Faxon ARAK-21 5.56 Complete Upper, 16in, Black

Build a 5.56 ARAK-21 rifle around Faxon’s complete, Nitride-finished 16-inch upper. Browse more of our AR15 uppers selection. Order the Faxon ARAK-21 5.56 Complete Upper, 16in, Black today for fast, insured shipping from a Lubbock, TX gun shop.