Faxon ION Series 16" Threaded Pencil 5.56 Barreled Upper (FX-URG-LW55616PCF15-BU)
Construct an ultra-lightweight, competition-ready AR-15 with the Faxon ION Series 16" Threaded Pencil 5.56 Barreled Upper—a factory-assembled barreled upper assembly engineered for maximum speed, minimal fatigue, and superior handling in dynamic shooting scenarios. This barreled upper includes the threaded pencil barrel, enhanced forged AR15 upper receiver, patented adjustable gas block, carbine-length stainless gas tube, 15" carbon fiber M-LOK handguard, and Slim 3-Port muzzle brake—ideal for 3-gun, tactical matches, lightweight training rifles, or any build where low reciprocating mass and fast transitions are critical (requires BCG, charging handle, and lower to complete).
Centered on Faxon's ION Series 16" threaded pencil-profile 5.56 barrel (4150 CMV steel, Salt Bath Nitride finish, 1:8 twist, mid-length gas), paired with the enhanced forged AR15 upper receiver for reliable function. The patented adjustable .625" low-profile gas block enables precise tuning across ammo types and setups (suppressed/unsuppressed), while the Slim 3-Port muzzle brake reduces recoil and muzzle rise for flatter shooting. The 15" carbon fiber M-LOK handguard delivers extreme weight savings with high rigidity and modular mounting. Made in Greater Cincinnati, Ohio with Faxon's lifetime warranty.
Key Features
- Barreled upper assembly including barrel, upper receiver, handguard, gas block, gas tube, and muzzle device — ready for BCG, charging handle, and lower installation
- ION Series 16" threaded pencil-profile 5.56 barrel (4150 CMV, Salt Bath Nitride finish, 1:8 twist, mid-length gas) for ultra-lightweight handling, velocity, and fast transitions
- Enhanced forged AR15 upper receiver for smooth, reliable cycling
- Patented adjustable .625" low-profile gas block (3-screw) for precise tuning across ammo and suppressed/unsuppressed use
- Faxon Slim 3-Port muzzle brake (1/2x28 threads) for reduced recoil, muzzle rise control, and flatter follow-up shots
- 15" carbon fiber M-LOK handguard for extreme weight reduction, high rigidity, and modular accessory mounting
- 1:8 twist rate stabilizes popular 55–77 gr 5.56 loads for consistent accuracy
- 100% Made in Greater Cincinnati, Ohio with Faxon's lifetime warranty
Specifications
- Manufacturer: Faxon Firearms
- Model: ION Series 16" Threaded Pencil 5.56 Barreled Upper
- Manufacturer Part Number: FX-URG-LW55616PCF15-BU
- Caliber: 5.56 NATO / .223 Rem
- Barrel Length: 16"
- Barrel Profile: Threaded Pencil
- Twist Rate: 1:8
- Gas System: Mid-Length
- Upper Receiver: Enhanced Forged AR15
- Gas Block: Patented adjustable .625" low-profile
- Muzzle Device: Slim 3-Port muzzle brake (1/2x28)
- Handguard: Streamline Carbon Fiber M-LOK 15"
- Gas Tube: Mid-length stainless steel
- Compatibility: Mil-spec AR-15 lowers; suppressor-capable (tunable gas); competition, training, lightweight defensive use; requires BCG and charging handle
- UPC: 810209950842
Whether you're competing in 3-gun or tactical matches, training dynamically, or building a lightweight rifle that excels with fast handling and reduced recoil, this Faxon ION Series barreled upper provides a premium, ultra-light foundation. Add your BCG and charging handle to complete a high-speed, competition-proven setup.
Add this ION Series 16" Pencil barreled upper to your cart today and get a lightweight, fast-handling AR-15 front end for your next match or range session!
