Faxon Duty Series 16 inch 350 Legend AR barrel with Gunner profile

FAXON DUTY SERIES GUNNER PROFILE 16" CARBINE-LENGTH 350 LEGEND AR15 BARREL

Faxon
SKU:
15AL16C16NGQ
|
UPC:
816341025264
Availability:
Usually ships within 2 business days.
$205.00
(3 reviews)
Current Stock:
Description

Faxon Duty Series — 16" Gunner Profile 350 Legend AR Barrel

4150 CMV Steel • Gunner Profile • 1:16 Twist • Nitride Finish • 1/2x28 Threads • Carbine-Length Gas System

The Faxon Duty Series 16" 350 Legend AR Barrel expands our popular Gunner line into the powerful and straight-walled .350 Legend cartridge. This barrel delivers superb balance, accuracy, and maneuverability—perfect for hunting or range use.

Combining the strength of the Gov’t profile with the lightweight feel of a Pencil barrel, the Gunner design keeps the rifle’s balance point close to the shooter for faster target transitions and reduced fatigue.

Each Faxon barrel is fully stress relieved, air-gauge tested, and 11° target crowned for superior accuracy. Precision machined in Cincinnati, Ohio from 4150 CMV steel and Nitride treated inside and out for maximum durability and corrosion resistance.

Key Benefits

  • New for 350 Legend: Optimized for straight-wall cartridge performance.
  • Gunner Profile: Ideal blend of Gov’t strength and Pencil barrel agility.
  • 4150 CMV Steel: Military-grade barrel steel for long-term durability.
  • Nitride Finish: Deep corrosion resistance for low-maintenance reliability.
  • Carbine-Length Gas System: Perfect balance of cycling and recoil management.
  • Precision QC: Stress relieved, air-gauge tested, and headspace verified with custom PTG gauges.

Specifications

Caliber / Chamber
350 Legend (SAAMI)
Length
16"
Twist Rate
1:16 Right-Hand Twist
Profile
Gunner
Gas System
Carbine-Length
Material
4150 CMV Steel
Rifling Method
Button Rifled
Finish
Salt Bath Nitride (Inside & Out)
Muzzle Threads
1/2x28 TPI
Gas Block Diameter
.750"
Gas Block Journal Length
1.9"
Barrel Extension
Big Bore
Weight
1.36 lbs
Crown
11° Target Crown

Frequently Asked Questions

Is this barrel compatible with standard AR-15 upper receivers?
Yes. It’s designed to fit standard AR-15 upper receivers chambered for .350 Legend builds.
What muzzle devices can I use with this barrel?
Any .350 Legend-compatible device with 1/2x28 threads will fit properly.
Is this barrel legal for hunting in straight-wall cartridge states?
Yes. The .350 Legend is a straight-wall cartridge, making it legal for hunting in many states that restrict bottlenecked rifle rounds.

Overview: 16" Duty Series Gunner Profile .350 Legend Barrel

The Faxon Duty Series 16" 350 Legend Gunner Barrel delivers the perfect balance of lightweight handling and rugged performance for hunters and shooters alike. Its Gunner profile and carbine-length gas system offer smooth operation, reduced recoil, and improved handling.

Built from 4150 CMV steel and Nitride treated inside and out, this barrel is ready for a lifetime of reliable accuracy—whether on the range or in the field.

Additional Information
Barrel Material:
4150 CMV
Barrel Type:
Button Rifled
Caliber:
350 Legend
Barrel Length:
16"
Barrel Twist:
1:16
Barrel Profile:
Gunner
Barrel Gas System:
Carbine
Outside Finish:
QPQ Nitride
Muzzle Thread:
1/2x28
Gas Block Diameter:
.750"
Gas Block Journal Length:
1.9"
Barrel Extension:
Big Bore
Barrel Weight:
1.36 lbs
Crown Type:
Recessed 11-degree Target Crown
Related Products

Reviews

  • 5
    A PLUS

    Posted by Ben Price on Mar 25th 2023

    No surprise very accurate. Light and well made!

  • 5
    16" gunner 350 legend barrel

    Posted by James Ladner on Nov 28th 2022

    Fit and finish perfect, accurate as expected.

  • 5
    Pefect 350 Legend barrel

    Posted by Black Swamp Firearms on Oct 19th 2021

    We've used Faxon barrels for our custom builds for the past six years. These 350 Legend barrels have achieved 1/2" groups (or better) for us at 100 yards. Amazing barrels. Many satisfied customers.