Faxon Firearms Ascent 22 Arc Complete Upper Receiver 16'' Gunner Bbl Black

The Faxon Firearms Ascent 22 ARC complete upper receiver brings a modern, high-velocity cartridge to the AR-15 platform without requiring a new lower receiver. Chambered in 22 ARC (Advanced Rifle Cartridge), this 16-inch Gunner barrel upper is built to take advantage of high-ballistic-coefficient bullets while maintaining the familiar ergonomics and modularity shooters expect from AR-platform rifles. Whether you're setting up a dedicated long-range trainer, a precision varmint rig, or exploring the potential of this emerging cartridge, the Ascent upper delivers factory-engineered reliability in a compact, practical package.

Faxon Firearms engineered the 22 ARC cartridge and chamber together to deliver consistent accuracy and tight velocity spreads—critical traits for shooters who demand repeatable performance. The Ascent platform packages that design intent into a complete, ready-to-run upper that integrates a rifle-length gas system tuned for the cartridge. You get everything needed to build or upgrade: the forged upper receiver, bolt carrier group, handguard, and muzzle device are all included and matched for out-of-the-box function.

The 15-inch aluminum handguard provides ample real estate for accessories while keeping the overall profile lean. The nitrided bolt carrier group is built for longevity and smooth cycling, and Faxon backs the entire Ascent line with a lifetime guarantee. Black anodize finish resists corrosion and pairs cleanly with modern rail systems and glass. Drop this upper onto any AR-15 lower receiver and you're ready to run.

Key Features

• Complete upper receiver assembly—no gunsmithing required
• Chambered in 22 ARC (Advanced Rifle Cartridge) with optimized chamber for high-BC bullets
• 16-inch Gunner barrel in rifle-length gas system configuration
• Forged upper receiver with integrated Picatinny rail
• 15-inch aluminum handguard for accessory mounting and ergonomics
• Nitrided bolt carrier group for durability and smooth function
• A2 birdcage flash hider included
• Black anodized finish
• Lifetime Guarantee from Faxon Firearms

Specifications

Frequently Asked Questions

What lower receiver does this 22 ARC upper fit?

The Ascent upper receiver is a standard AR-15 pattern and will mate with any AR-15 lower receiver. You do not need to buy a dedicated lower—drop this upper onto the lower of your choice and you're ready to go.

Is this a complete upper or do I need to add parts?

This is a complete upper receiver assembly. It includes the forged upper, barrel, bolt carrier group, handguard, gas system, and muzzle device. You will only need a lower receiver and your choice of ammunition to be fully functional.

What is the 22 ARC cartridge and why should I consider it?

The 22 ARC (Advanced Rifle Cartridge) is a modern cartridge engineered to fire high-ballistic-coefficient bullets from an AR-15 platform. It was designed specifically to deliver consistent accuracy and velocity spreads, making it popular with precision shooters and those seeking a dedicated trainer or varmint platform in a compact, familiar gun.

What does the lifetime guarantee cover?

Faxon Firearms backs the Ascent upper with a lifetime guarantee. For specific terms and coverage details, contact Faxon Firearms directly or check their website.