Home > AR Parts > Barrels >

FAXON FIREARMS 10.5" PENCIL, 5.56 NATO, Carbine-Length, 4150 QPQ

FAXON FIREARMS 10.5" PENCIL, 5.56 NATO, Carbine-Length, 4150 QPQ

MSRP $159.00
Labor Day Price $139.95
Savings: $19.05

Stock Status :IN STOCK

Product Code: 15A58C10NPQ


Faxon 10.5" Lightweight Pencil Barrel - 4150 QPQ

Our pencil barrels are the lightest in the industry. Don't take just our word for it, major companies like Robar, 2A Armament, and others choose Faxon pencils for their ideal balance of weight and performance.

Faxon Firearms barrels are the pinnacle of value. Manufactured 100% in-house from cradle-to-grave, these barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy.

Quality is imbued into our barrels from the start. We start with the best materials, either certified 4150 Mil-Spec steel or 416-R Stainless. From there, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. All barrels are individually checked for headspace by precision custom hardened gauges.

  • Barrel Material: 4150 Certified Gun Barrel Quality Steel
  • Barrel Type: Button Rifled
  • Barrel Caliber: 5.56
  • Barrel Twist: 1:8
  • Barrel Length: 10.5"
  • Barrel Profile: Pencil
  • Barrel Gas System: Carbine
  • Inside Finish: QPQ Nitride
  • Outside Finish: QPQ Nitride
  • Muzzle Thread: 1/2-28 TPI (Threads Per Inch)
  • Gas Block Diameter: .625"
  • Gas Port Diameter: .081"
  • Gas Block Journal Length: 1.1"
  • Barrel Extension: M4
  • Weight: .9 lbs
  • Magnetic Particle Inspected!
  • 11-degree Target Crown

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 I like your products and attitude. March 4, 2019
Reviewer: out4trout from West Jordan, UT United States  
The barrel is fantastic.  Very very accurate for a 10.5 incher.  Additionally it is light.  I used this on an AR pistol build and it fills the bill exactly. RTBA is a great place to order from.  Fast accurate shipping at a reasonable price.

Was this review helpful to you?

  1 of 1 people found the following review helpful:
5 of 5 Just what I was waiting for May 27, 2017
Reviewer: Rob K  
Been waiting (and writing for) Faxon to come out with a 10-11"  pencil profile barrel. I've used a handful of their 16" pencil offering and have been extremely pleased with how well they function, and, how much heat drift they have.

Got the new build out to the range for 2nd time today. Very pleased with its functionality and quite pleased with how little heat shit it experiences when running hot. All my range friends that were out today liked it and were very surprised at how little it weighs in the full build-out.

Using a MI lightweight, AIM low-mass BCG, and a SLR Sentry 6 so I could tweak the gas to run well with that low mass carrier.  

I'll definitely be picking up a few of this barrel in the new future to update my wife and eldest's pistol upper builds.

Was this review helpful to you?