Faxon - DUTY SERIES GUNNER PROFILE 18" RIFLE-LENGTH 5.56 NATO AR15 BARREL
Faxon Duty Series Gunner Profile — 18" Rifle-Length 5.56 NATO (1:8 Twist)
Precision, balance, and reach — Faxon’s 18" Gunner brings long-range accuracy with lightweight control.
The Faxon Duty Series 18" Gunner Profile 5.56 NATO barrel blends the durability of a Government contour with the weight savings of a Pencil profile. Designed for rifle-length gas systems, this barrel delivers exceptionally smooth recoil and excellent velocity, making it ideal for precision builds, competition rifles, and hunting platforms.
Key Benefits
Balanced Gunner profile: Combines Gov’t strength with Pencil weight savings for the ideal performance blend.
Rifle-length gas system: Provides the softest recoil impulse and most consistent cycling for 5.56 platforms.
Longer dwell time: Enhances accuracy and velocity, ideal for precision and long-range AR-15 setups.
Durable 4150 CMV steel: Fully stress-relieved, air-gauge tested, and magnetic particle inspected.
Corrosion resistant: Inside and out black nitride finish extends service life and simplifies cleaning.
Lightweight for its length: Weighs just 1.58 lbs, providing excellent balance and handling.
Specifications
Caliber
5.56 NATO
Length
18" (Rifle-Length Gas)
Profile
Gunner (Gov’t/Pencil Blend)
Material
4150 CMV Steel
Rifling
Button-rifled, 1:8 Twist
Finish
Black Nitride (Inside & Out)
Gas System
Rifle-Length
Gas Block Diameter
.625"
Gas Block Journal Length
1.9"
Muzzle Thread
1/2-28 TPI
Barrel Extension
M4
Weight
1.58 lb (approx.)
Crown
11° Target Crown
Why Choose the Gunner Profile
The Gunner profile merges the heat control of a Government profile with the weight savings of a Pencil barrel. This hybrid design shifts balance toward the shooter for improved handling, especially when firing from standing or dynamic positions. The result is a rifle that feels fast, stable, and accurate — perfect for practical rifle builds and high-volume training.
Installation & Compatibility
Standard M4 barrel extension fits AR-15 upper receivers.
Compatible with .625" gas blocks on a 1.9" journal.
1/2-28 threads support brakes, comps, and suppressor mounts.
Optimized for rifle-length gas tubes and standard AR-15 carriers.