Faxon ION Series 16" Integral Brake Pencil 5.56 Barreled Upper (FX-URG-LW556IMDBCF15-BU)
Build an ultra-lightweight, high-speed AR-15 with integrated recoil control using the Faxon ION Series 16" Integral Brake Pencil 5.56 Barreled Upper—a factory-assembled barreled upper assembly optimized for competition, dynamic training, and fast-handling performance. This barreled upper includes the one-piece Integral® barrel and brake, enhanced forged AR15 upper receiver, patented adjustable gas block, carbine-length stainless gas tube, and 13" carbon fiber M-LOK handguard—ideal for 3-gun, tactical matches, lightweight defensive rifles, or any scenario where reduced front-end weight, flatter shooting, and quick transitions are critical (requires BCG, charging handle, and lower to complete).
Centered on Faxon's ION Series 16" Integral® Pencil Brake Profile 5.56 barrel (4150 CMV steel, Salt Bath Nitride finish, 1:8 twist, mid-length gas)—machined as a single continuous piece of steel for perfect alignment, reduced recoil, muzzle rise control, and no separate muzzle device, shims, or timing needed. The patented adjustable .625" low-profile gas block enables precise tuning across ammo and setups (suppressed/unsuppressed), while the 13" carbon fiber M-LOK handguard delivers extreme rigidity with dramatic weight reduction. Made in Greater Cincinnati, Ohio with Faxon's lifetime warranty.
Key Features
- Barreled upper assembly including barrel, upper receiver, handguard, gas block, and gas tube — ready for BCG, charging handle, and lower installation
- ION Series 16" Integral® Pencil Brake Profile 5.56 barrel (4150 CMV, Salt Bath Nitride finish, 1:8 twist, mid-length gas) — one-piece barrel and 3-port brake design for streamlined weight savings, reduced recoil, and flatter follow-ups
- Enhanced forged AR15 upper receiver for reliable function and smooth cycling
- Patented adjustable .625" low-profile gas block (3-screw) for precise tuning across ammo types and suppressed/unsuppressed use
- 13" 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" Integral Brake Pencil 5.56 Barreled Upper
- Manufacturer Part Number: FX-URG-LW556IMDBCF15-BU
- Caliber: 5.56 NATO / .223 Rem
- Barrel Length: 16"
- Barrel Profile: Integral Pencil Brake
- Twist Rate: 1:8
- Gas System: Mid-Length
- Upper Receiver: Enhanced Forged AR15
- Gas Block: Patented adjustable .625" low-profile
- Muzzle Device: Integral 3-port brake (one-piece with barrel)
- Handguard: Streamline Carbon Fiber M-LOK 13"
- 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: 810209950811
Whether you're competing in 3-gun or tactical matches, training dynamically, or building a lightweight rifle that excels with integrated muzzle control, reduced recoil, and fast handling, 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" Integral Brake Pencil barreled upper to your cart today and get a lightweight, high-performance AR-15 front end for your next match or range session!