Faxon Duty Series 11.5 inch Gunner mid-length 5.56 complete upper suppressor ready right profile

FAXON DUTY SERIES 11.5" GUNNER MID-LENGTH 5.56 COMPLETE UPPER - SUPPRESSOR READY

Faxon
SKU:
FX-URG-D556115GA1075-C-SR
|
UPC:
810209950781
Availability:
Usually Ships Within 2 Business Days
$972.00
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Description
FAXON DUTY SERIES 11.5 inch Gunner mid-length 5.56 complete upper suppressor ready

Duty Series Complete Upper • Suppressor Ready

FAXON DUTY SERIES 11.5" GUNNER MID-LENGTH 5.56 COMPLETE UPPER - SUPPRESSOR READY

11.5" Gunner Profile 5.56 NATO Mid-Length Gas Adjustable .625 Gas Block Plan B Compatible FH Includes BCG Includes Charging Handle 10.75" M-LOK Handguard Made in Ohio

The Faxon Duty Series 11.5" Gunner Mid-Length 5.56 Complete Upper - Suppressor Ready is built around one of the most distinctive short-barrel 5.56 configurations in the AR15 space: an 11.5" barrel paired with a mid-length gas system. That matters because many buyers looking at compact 5.56 uppers are trying to solve the same problem—how to keep a short rifle or pistol build compact while avoiding the sharp, overgassed feel that can show up once a suppressor is added.

This upper is designed to answer that hesitation directly. Instead of treating the suppressor like an afterthought, Faxon built this SKU as a suppressor-focused ecosystem. At the center is the Duty Series 11.5" Gunner Profile 5.56 NATO barrel, but the bigger story is the gas timing. On a setup this short, mid-length gas is unusual—and that is exactly why it stands out. It gives suppressor-minded shooters a more deliberate starting point for tuning the rifle around added backpressure, recoil impulse, and overall shooting comfort.

Faxon complements that concept with the parts that matter most to real-world suppressed performance: a patented adjustable .625" 3-screw low profile gas block, a mid-length stainless steel gas tube, and a Faxon MuzzLok® stainless steel Plan B compatible flash hider with 1/2x28 threads and a .250" bore. That combination gives the buyer an easier path to a rifle that can be tuned around the suppressor, instead of forcing them to solve gas and mount compatibility later.

The upper also includes the Faxon Superfinished 5.56 M16 Bolt Carrier Group - Nitride and a mil-spec charging handle, so this is not just a barreled assembly with a marketing label attached. It is a true complete upper receiver group meant for buyers who want a compact, duty-minded 5.56 host that is already pointed in the right direction for suppression.

Why this setup is different:
Most short 5.56 uppers are easy to buy. Fewer are purpose-built to make suppression feel more sorted from the beginning. This one closes that decision gap with an 11.5" mid-length barrel, adjustable gas control, Plan B suppressor-mount compatibility, and complete-upper convenience.

Best for: compact suppressed 5.56 builds, training carbines, duty-minded SBR or pistol setups, and buyers who want a short upper that feels more intentional for suppression.
Not for: buyers who want the cheapest basic 11.5" upper, or those specifically looking for a fixed-gas non-tunable setup.

Read FAQs & Suppressor Fit Notes Shop All AR15 Uppers

Why the 11.5" Mid-Length Gas System Matters

  • It is genuinely uncommon on an 11.5" 5.56 upper, which makes it stand out immediately from more typical short carbine-gas builds.
  • It is built with suppression in mind, helping create a better starting point for shooters trying to avoid the harsh, overgassed feel short suppressed 5.56 guns can develop.
  • It works as part of a system, not as a gimmick—especially when paired with the included adjustable gas block and suppressor-mount-ready muzzle device.
  • It gives advanced buyers more tuning confidence, which is often the difference between “interesting concept” and “ready to buy.”

Key Features

  • Complete upper receiver group with upper receiver, barrel, handguard, gas system, muzzle device, bolt carrier group, and charging handle included.
  • Distinctive 11.5" mid-length gas configuration built to give short 5.56 suppressed shooters a more refined tuning foundation.
  • Suppressor-ready from the start with Faxon’s patented adjustable .625" low profile gas block and a Plan B compatible flash hider already installed.
  • Duty Series Gunner barrel profile for balanced handling, practical durability, and reduced front-end weight.
  • 10.75" Streamline M-LOK handguard for modern accessory mounting without excess bulk.
  • Decision-ready suppressor ecosystem that addresses barrel length, gas control, and mount compatibility together.
  • Built by Faxon Firearms in Greater Cincinnati, Ohio, by a family-owned American manufacturer with machining roots dating back to 1978.

Bill of Materials (BOM)

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

Why is the 11.5 inch mid-length gas system unique? ▾

Most short 5.56 uppers in this length class use a more conventional gas layout. An 11.5" barrel with mid-length gas is more distinctive, which is exactly why suppressor-minded shooters notice it. It gives buyers a short package with a more deliberate tuning foundation for suppressed use.

Why is mid-length gas appealing on a suppressed 11.5 inch 5.56 upper? ▾

Suppressor buyers are usually trying to avoid a rifle that feels excessively violent, overgassed, or unpleasant once a can is added. This configuration is attractive because it was designed around suppression compatibility, and it gives the shooter a better starting point for dialing in recoil feel, gas behavior, and overall comfort.

Why does the adjustable gas block matter so much on this setup? ▾

On a short barrel like an 11.5", tuning matters. The included Faxon patented adjustable .625" low profile gas block lets the shooter fine-tune the system around ammunition, suppressor type, and overall rifle setup. That helps turn the mid-length concept into a practical, user-tunable host instead of just an interesting spec sheet item.

Is this a complete upper or just a barreled upper? ▾

This is a complete upper receiver group. It includes the upper receiver, barrel, handguard, gas system, muzzle device, bolt carrier group, and charging handle.

What makes this upper suppressor ready? ▾

This version includes the parts suppressor-minded buyers usually want to add anyway: an adjustable gas block, a Plan B compatible flash hider, and a complete-upper format with the BCG already included. That removes a lot of the guesswork from building a compact suppressed 5.56 host.

What lower receiver will this upper work with? ▾

This upper is designed for the AR15 platform and pairs with a standard compatible AR15 lower receiver. A matching option is the FAXON AR15 FORGED AR15 LOWER RECEIVER - STRIPPED.

Does this upper include the BCG and charging handle? ▾

Yes. This complete upper includes the Faxon Superfinished 5.56 M16 Bolt Carrier Group - Nitride and a mil-spec charging handle.

What muzzle threads and suppressor mount path does it use? ▾

The included muzzle device is a Faxon MuzzLok® stainless steel Plan B compatible flash hider with 1/2x28 threads and a .250" bore. Always confirm your suppressor mount, bore clearance, and manufacturer requirements before firing.

Who is this upper best suited for? ▾

This upper is a strong fit for buyers wanting a compact defensive carbine, a suppressed training rifle, or a short 5.56 upper that already includes the core parts many shooters would otherwise need to source separately.

Is this product made in the USA? ▾

Yes. Faxon Firearms is a family-owned American manufacturer headquartered in Greater Cincinnati, Ohio, and this upper is built around Faxon components and assembly expertise.

What warranty covers this 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/

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/ Search Keywords
Additional Information
Caliber:
5.56 NATO
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