FAXON DUTY SERIES 16" GUNNER 350 LEGEND COMPLETE UPPER - SUPPRESSOR READY
FaxonDuty Series Complete Upper • Suppressor Ready
FAXON DUTY SERIES 16" GUNNER 350 LEGEND COMPLETE UPPER - SUPPRESSOR READY
The Faxon Duty Series 16" Gunner 350 Legend Complete Upper - Suppressor Ready is built for shooters who want a practical 350 Legend AR15 upper for hunting, range use, and straight-wall cartridge states without having to piece together the critical front-end parts on their own. This is a complete upper receiver group, not a complete firearm, and it arrives configured to shorten the path from parts selection to a finished rifle.
At the core is the Faxon Duty Series Gunner Profile 16" Carbine-Length 350 Legend AR15 Barrel, paired with the Faxon Enhanced Forged Big Bore AR15 Upper Receiver. That combination gives buyers a purpose-built big-bore host with the handling benefits of Faxon’s Gunner profile, keeping the rifle lively while maintaining strength where heat and pressure are highest.
This upper is configured as a suppressor-ready ecosystem, not just a single SKU. It includes the Faxon Patented Adjustable .750" 3 Screw Low Profile Gas Block, a carbine-length stainless gas tube, and the Faxon MuzzLok® Stainless Steel Plan B Compatible Flash Hider 1/2x28 - 9mm Bore. It also includes the Faxon Superfinished 5.56 M16 Bolt Carrier Group - Nitride and the Faxon Edition Breek® Sledgehammer AR15 Gas Blocking Charging Handle to help round out a more complete suppressor-host package.
The result is a balanced upper that makes sense for deer hunters, hog hunters, and buyers building a practical modern straight-wall AR. 350 Legend remains one of the most relevant straight-wall hunting cartridges for AR15 users because it combines mild recoil, practical hunting performance, and strong state-by-state deer-hunting relevance in places where straight-wall cartridges matter most.
Best for: deer hunting, hog hunting, range use, and shooters who want a 350 Legend suppressor host with the upper, BCG, and charging handle already selected.
Not for: buyers expecting a complete firearm or those who do not plan to use proper 350 Legend-compatible magazines and lower components.
Key Features
- Complete upper receiver group with Faxon bolt carrier group and gas-blocking charging handle already included.
- Duty Series 16" Gunner 350 Legend barrel built for balanced handling and practical field use.
- Suppressor-ready foundation with an adjustable gas block and Plan B-compatible MuzzLok® flash hider.
- Big bore AR15 upper receiver paired to a straight-wall hunting cartridge with real-world deer and hog hunting relevance.
- 15" Streamline M-LOK handguard for modern control, accessory placement, and full-length support-hand positioning.
- Manufactured by Faxon Firearms in Greater Cincinnati, Ohio—backed by a family machining heritage dating to 1978.
Bill of Materials (BOM)
- Upper Receiver: FAXON ENHANCED FORGED BIG BORE AR15 UPPER RECEIVER
- Barrel: FAXON DUTY SERIES GUNNER PROFILE 16" CARBINE-LENGTH 350 LEGEND AR15 BARREL
- Muzzle Device: FAXON MUZZLOK® STAINLESS STEEL PLAN B COMPATIBLE FLASH HIDER 1/2X28 - 9MM BORE
- Handguard: FAXON STREAMLINE ALUMINUM M-LOK 15" AR15 HANDGUARD
- Gas Block: FAXON PATENTED ADJUSTABLE .750" 3 SCREW LOW PROFILE GAS BLOCK
- Gas Tube: FAXON CARBINE LENGTH STAINLESS STEEL AR GAS TUBE
- Bolt Carrier Group: FAXON SUPERFINISHED 5.56 M16 BOLT CARRIER GROUP - NITRIDE
- Charging Handle: FAXON EDITION BREEK® SLEDGEHAMMER AR15 GAS BLOCKING CHARGING HANDLE
Keep Building
Warranty
All Faxon Firearms products are backed by our Limited Lifetime Warranty.
For full warranty terms, service instructions, and exclusions, please visit:
https://faxonfirearms.com/warranty-privacy-terms/
FAQs
Is this a complete firearm? ▾
No. This is a complete upper receiver group. You will still need a compatible AR15 lower receiver, proper 350 Legend magazines, and the rest of your lower components to complete the rifle.
Does this upper include a bolt carrier group and charging handle? ▾
Yes. This complete upper includes a Faxon Superfinished 5.56 M16 Bolt Carrier Group and a Faxon Edition Breek® Sledgehammer gas-blocking charging handle.
What makes this upper suppressor ready? ▾
This upper includes a Faxon patented adjustable .750" gas block, a Plan B-compatible MuzzLok® flash hider, and a gas-blocking charging handle to give you a stronger starting point for tuning around suppressor backpressure and ammo choice.
What gas system length is used on this upper? ▾
This complete upper uses a carbine-length gas system with an adjustable .750" gas block and a carbine-length stainless gas tube.
What muzzle threads and suppressor mount path does it use? ▾
The included muzzle device is a Plan B-compatible flash hider with 1/2x28 threads and a 9mm bore. Always confirm suppressor mount fitment and bore clearance before firing.
Who is this upper best suited for? ▾
This upper is a strong option for shooters building a deer or hog hunting AR, buyers in straight-wall cartridge states, and anyone wanting a 350 Legend suppressor host with the BCG and charging handle already included.
Do I need cartridge-specific magazines for 350 Legend? ▾
Yes. Reliable 350 Legend AR builds depend on using correct cartridge-compatible magazines and support components. This upper includes the upper group components, but proper magazine selection still matters for dependable function.
Is this product made in the USA? ▾
Faxon Firearms is a family-owned American manufacturer headquartered in Greater Cincinnati, Ohio. This complete upper is built around Faxon components and in-house manufacturing experience rooted in advanced precision machining.
What warranty covers this complete upper? ▾
All Faxon Firearms products are backed by our Limited Lifetime Warranty.
For full warranty terms, service instructions, and exclusions, please visit:
https://faxonfirearms.com/warranty-privacy-terms/
- Caliber:
- 350 LEGEND
