Tuesday, 12 Nov 2019

[Slickguns Review] Faxon 16″ Gunner Barrel: Best Bang-for-the-Buck?

[Review] Faxon 16″ Gunner Barrel: Best Bang-for-the-Buck?

Looking for a solid AR-15 barrel for under $200…that’s light too?

Faxon’s super-popular “Gunner” profile barrels ($175) might be the one for you.

Faxon 16″ Gunner 5.56 Barrel

Find out what makes the Gunner profile special when compared to the standard M4 profile…plus my take on fit/finish, shootability, accuracy, and more.

By the end you’ll know if this do-all barrel is for you.  AND Faxon has given Pew Pew Tactical readers a special 10% off all barrels coupon.

Goldilocks Barrel
Faxon 16" Gunner, 5.56 NATO, Mid-Length

Faxon 16″ Gunner, 5.56 NATO, Mid-Length

See It

Compare prices (2 found)

  • Faxon (See Price)
  • Brownells (See Price)

Prices accurate at time of writing

Let’s do this!

Table of Contents


About Faxon

Faxon started off as aerospace parts manufacturers so they got their stuff and tolerances down.  All their barrels are made in-house from “cradle to grave.”

Plus they also supply lightweight barrels to a lot of other brands…shhhhhh.

I’ve reviewed several of their barrels over the years and really like their stuff for the price point.

Faxon Barrel Assortment
Faxon Barrel Assortment
  • 16″ Pencil Barrel [Slickguns Review]
  • 14.5″ Pencil Barrel with Attached Muzzle [Slickguns Review]

But now I’m finally reviewing their flagship Gunner profile.

What’s the Gunner Profile?

Let’s first start with the M4/Government profile barrel…

BCM M4 Profile Barrel
BCM M4 Profile Barrel

You can see the thickness tapers a little to a gas block diameter of .75″ and pretty much continues until the end.

With a Gunner barrel…

Faxon Gunner Profile
Faxon Gunner Profile

You get the stiff Government profile at the beginning which tapers into a pencil profile of diameter .625″ for the gas block.  It’s the best of both worlds.

A regular M4 barrel can be up to 28 oz while the 16″ Gunner is 22 oz.  That’s a good 6 oz amount (hockey puck or billiards ball) of savings at the end of your AR.

And the difference from the Gunner and a pencil barrel?

Faxon Gunner vs Pencil
Faxon Pencil (T) vs Gunner (B)

The extended area after the gas block install which adds nearly 3 oz but more stability across different loads in our groups testing.

Now you know what the Gunner is…let’s see how it does!

Who Is It For?

  • Someone looking for the balance between weight and performance in a barrel
  • Someone looking for a soft shooting mid-length gas system barrel
  • Someone cost-conscious but wants something with a great rep in the builder community

Fit, Feel, & Install

The barrel is nicely QPQ Nitride finished so it’s a nice smooth black.  Not bumpy like phosphate and not excessively shiny.

Faxon 16 Gunner Barrel
Faxon 16 Gunner Barrel

M4 feed ramps were all nicely cut across the Faxon barrels I’m testing/tested.

AR-15 Barrel Ramps
Faxon Feed Ramps

Install was straightforward and I used their Ultra Low Profile Gas Block in .625″ ($32) and their mid-length gas tube ($14).

Faxon Gas Block
Faxon Gas Block

I made sure to have the proper clearance from the shoulder to the block and each install has been great with thousands of rounds combined.  Check out our How to Assemble an AR-15 Upper Guide for help.

I also combo-ed it with a Faxon Upper Receiver ($125) and Lightweight BCG ($249).

Faxon Upper Receiver and BCG
Faxon Upper Receiver and BCG

Plus their lightweight Carbon Fiber Handguard ($329) to really take advantage of the Gunner weight savings.

In previous builds I’ve used Aero Precision and Anderson Manufacturing uppers and Midwest Industries handguards.  Everything is up to spec and fits like the adult legos that AR-15s were meant to be.

Best AR-15 Handguards
Best AR-15 Handguards

Check out more in Best AR-15 Upper Receivers and Best AR-15 Handguards.

How It Shoots

I tried the Gunner barrel in two builds…one with a standard aluminum handguard and another with Faxon’s Carbon Fiber.  Both builds my buddies and I were surprised at how light everything felt.

Which translated into quicker movement between targets.  Removing that 6 oz from the front really helps!

Also…even without an adjustable gas block the recoil was very manageable since it’s shooting 5.56.

I used a Aimpoint PRO (Best Red Dot Sights) and was able to nail 100 yard plates in rapid succession with ease…even when standing up.

Aimpoint PRO View
Aimpoint PRO View

After 500 rounds across several range trips and shooters…I was ready to test 100 yard groups.

Faxon Gunner 100 Yards
Faxon Gunner 100 Yards (By the Berm)

With my go-to shooting rig setup.

Faxon Gunner Barrel Testing
Faxon Gunner Barrel Testing
  • Lead Sled DFT ($200)
  • Schmidt & Bender PMII 5-25x Scope ($3500)
  • Hiperfire Trigger ($250)

And a couple 5.56/.223 ammo loads.

I shot at a decent speed of around 1 round each time I got back on target (3-5 seconds).  10 round groups.

I waited for the barrel to be warm enough so I could grab it before moving onto the next load.

Faxon Gunner Groups
Faxon Gunner Groups

The cheapest plinking round I had was the Wolf Gold and it did the most poorly…at about 3 MOA (3″ groups at 100 yards).

PMC Bronze was slightly tighter.

And I was having really high hopes for American Eagle for my first 6 shots that were about 1 MOA.

Faxon Gunner American Eagle
Faxon Gunner American Eagle

But then it started opening up on the last 4.

It seemed like this for the other groups as well.  Pretty close for the first 5 or so rounds…and then it opens up when the barrel warms.

How about the match ammo?

Recently I’ve been having a string of good luck where the cheapest ammo somehow did the best.  But this time things returned to normal and we see Gold Medal group 1 MOA.

So what’s the conclusion?

For ~$160 (with the special Pew Pew Tactical coupon at the bottom)…it’s pretty great to get a 1-3 MOA barrel from a trusted brand.

One that’s good enough for 90% of the people and even competition shooters unless you’re shooting 400+ yards at smaller targets.

I was able to hit 300 yards (3rd berm) most of the time crouched with my 1x Aimpoint.

Angeles Range 100-600 Yards
Angeles Range 100-600 Yards


  • Barrel Material: 4150 CMV Steel
  • Barrel Type: Button Rifled
  • Barrel Caliber: 5.56
  • Barrel Twist: 1:8
  • Barrel Length: 16”
  • Barrel Gas System: Mid
  • Finish: QPQ Nitride
  • Muzzle Thread: 1/2-28 TPI
  • Gas Block Diameter: .625″
  • Gas Block Journal Length: 1.9″
  • Barrel Extension: M4
  • Weight:  1.37  lbs (22 oz)
  • Magnetic Particle Inspected!
  • 11-degree Target Crown

By the Numbers

Reliability: 5/5

Nothing went wrong in 500+ rounds.  Feed ramps were cut correctly, gas block holes were in the right place, and it was easy to install onto two uppers and handguard configurations.

Accuracy: 4/5

Does the best with match ammo…but also did well with plinking ammo until it opens up due to the heat.  However still great for the price and enough accuracy for most people…even competition shooters.

Looks: 5/5

QPQ Nitride is smooth and not shiny (or dull).  No dents or tooling marks I could find.

Bang for the Buck: 5/5

An awesome overall barrel for around $160.

Overall Rating: 4.5/5


Looks great, shoots softly, and transitions quickly.

Faxon Carbon Fiber Handguard
Faxon Gunner and Carbon Fiber Handguard

There’s not too much to ask for a $160 barrel.

Accuracy could be better with plinking ammo after the barrel heats up…but it didn’t seem finicky about which ones.  If I had to choose…I’d go with the American Eagle for mine (Best AR-15 Ammo).

But always test your individual barrel since they can vary.

I firmly recommend Faxon’s Gunner Barrel for your affordable builds where you want something light from a reputable company.

Goldilocks Barrel
Faxon 16" Gunner, 5.56 NATO, Mid-Length

Faxon 16″ Gunner, 5.56 NATO, Mid-Length

See It

Compare prices (2 found)

  • Faxon (See Price)
  • Brownells (See Price)

Prices accurate at time of writing

And that 10% off coupon for Pew Pew Tactical readersFXPPTBARREL10

If you’re looking for a one stop shop for your upper…Faxon’s other parts are a great value too:

  • Ultra Low Profile Gas Block ($32)
  • Faxon Upper Receiver ($99)

Are you going to get a Faxon Gunner profile barrel?  Or if you already have one…how’s it shoot compared to mine?  Check out the rest of our barrel picks in Best AR-15 Barrels.

The post [Slickguns Review] Faxon 16″ Gunner Barrel: Best Bang-for-the-Buck? appeared first on Pew Pew Tactical.

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