Faxon ION Series 16" Threaded Pencil 5.56 Complete Upper

Overview

Built for shooters who want maximum performance with minimum weight, the Faxon ION Series 16" Threaded Pencil 5.56 Complete Upper combines an ultra-light profile barrel with premium Faxon components—centered around the Faxon Enhanced Forged Upper Receiver, a 15" carbon fiber handguard, and a Faxon patented adjustable gas block for tuning across ammo types and setups. This configuration includes an ambidextrous charging handle for fast, confident manipulation.

Key Features

• ION-Series lightweight build designed for fast handling and reduced front-end mass
• 16" Pencil 5.56 barrel for an excellent balance of weight and capability
• Faxon Patented Adjustable Gas Block for optimized function and smoother recoil impulse
• 15" Carbon Fiber Handguard for rigidity with minimal weight
• Faxon Gunner Lightweight 5.56 Bolt Carrier Group to keep the entire system moving fast
• Faxon Slim 3-Port Muzzle Brake to help control muzzle rise and improve follow-up shots
• Ambidextrous Charging Handle included for left- or right-handed use

What's Included

• Faxon Enhanced Forged Upper Receiver
• Faxon 16" Pencil 5.56 Barrel
• Faxon Patented Adjustable Gas Block
• Faxon 15" Carbon Fiber Handguard
• Faxon Slim 3-Port Muzzle Brake
• Faxon Gunner Lightweight 5.56 Bolt Carrier Group
• Faxon Ambidextrous Charging Handle

Note: Only the components listed above are guaranteed to be included. If your build requires additional accessories beyond this list, please confirm the package contents before ordering.

Specifications

• Platform: AR-15
• Caliber: 5.56 NATO
• Barrel Length: 16 in
• Barrel Profile: Pencil
• Handguard Length: 15 in
• Gas System: Adjustable (Faxon Patented Adjustable Gas Block)
• Muzzle Device: Faxon Slim 3-Port Muzzle Brake
• BCG: Faxon Gunner Lightweight 5.56 BCG
• Charging Handle: Faxon Ambidextrous Charging Handle

Tuning note: Lightweight systems often benefit from proper gas tuning. The adjustable gas block is intended to help optimize reliability and recoil characteristics for your ammunition and setup.

FAQs

Is this a complete upper?

Yes—this is sold as a complete upper assembly with the major components listed above, including the Faxon Gunner Lightweight 5.56 BCG and ambidextrous charging handle.

Does it include a charging handle?

Yes. This configuration includes an ambidextrous charging handle.

Why an adjustable gas block on a lightweight upper?

Adjustable gas helps you tune the system for smoother cycling and consistent function across ammo types and setups— especially helpful on lightweight builds.

What makes the ION Series different?

ION uppers are configured to prioritize weight savings without sacrificing durability—pairing lightweight components (like a pencil barrel, carbon fiber handguard, and lightweight BCG) with a premium receiver and tunable gas.

Warranty

Faxon Firearms products are backed by the Faxon Lifetime Guarantee to the original purchaser against defects in materials and workmanship. For complete terms, exclusions, and RMA instructions, visit: faxonfirearms.com/warranty-privacy-terms/.

ION Series™ and Faxon® are trademarks of Faxon Firearms. All third-party trademarks, if any, are the property of their respective owners.