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Faxon Firearms AR-15 5.56 NATO Pencil Profile Threaded Barrels Up to $14.00 Off — Free 2 Day Shipping w/ code 2DAYAIR — 3 models

Special offer available for this product. Click here to see!
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Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 556 Nato, Pinned Gas Block, 15A58M16NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
Faxon Firearms 14.5 in Pencil Profile AR15 Barrel, 556 Nato, Pinned Gas Block, 15A58M14NPQ
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
1 of 16 images
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
2 of 16 images
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 556 Nato, Pinned Gas Block, 15A58M16NPQ
3 of 16 images
Faxon Firearms 16in Pencil Profile AR15 Barrel, 556 Nato, Pinned Gas Block, 15A58M16NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
4 of 16 images
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
5 of 16 images
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
6 of 16 images
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
7 of 16 images
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
8 of 16 images
Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
9 of 16 images
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
Faxon Firearms 14.5 in Pencil Profile AR15 Barrel, 556 Nato, Pinned Gas Block, 15A58M14NPQ
10 of 16 images
Faxon Firearms 14.5 in Pencil Profile AR15 Barrel, 556 Nato, Pinned Gas Block, 15A58M14NPQ
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
11 of 16 images
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
12 of 16 images
Faxon Firearms 14.5in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ 15A58M14NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
13 of 16 images
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
14 of 16 images
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
15 of 16 images
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ
16 of 16 images
Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ

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Questions & Answers
Is there a dimple to line up the gas block? Expert Answer

Faxon barrels are not dimpled from the factory. The end user/builder will need to dimple the barrel if that is how they choose to install the gas block.

by Armando R., Gear Expert, May 15, 2019
See 2 More Answers
Is it Cold-Hammer Forged? Expert Answer

According to the manufacture, this item is NOT cold-hammer forged.

by Brandon B, Gear Expert, July 23, 2021
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Nice barrel; no issues by Johnny 5, Verified Owner, November 15, 2025
Product as described. In new condition. The brand is what I’ve come to expect from the brand. I’d buy again.
1/1 found this helpful
Helpful Positive Review
This barrel makes a poor shooter look like and Gold medal Olympian by DaveAR50, November 9, 2016
I recently put a system together using Faxon components. It’s an AR15 which consisted of a 16” pencil barrel, their new flash hider/ compensator, the Holding Upper and lower, a Faxon bolt carrier assy and a Hyperfire trigger. I took it to the range...
Read More...
13/14 found this helpful
Helpful Positive Review
16 inch faxon pencil barrel by Robert Pettus, May 7, 2020
so far I have over 1k rounds through this barrel. At first this barrel to me was just acceptable due the incredible weight savings but the accuracy was just, meh. After almost 800 rnds I removed the barrel, lapped the reciever face, and used 0.001 in...
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2/3 found this helpful
Helpful Positive Review
awesome lightweight barrel by Fred K, June 4, 2022
A really nice pencil barrel. Mounted it in an Aero slick upper with a carbon fiber handguard. (WWSD) project .I love the pinned gas block and the fit and finish of the barrel. very fast to get on target without over running. Very accurate and its not...
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Helpful Positive Review
16” Faxon pencil barrel by Rob T, Verified Owner, November 16, 2021
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Helpful Positive Review
Best lightweight barrel on the market. by BrotherJack, Verified Owner, May 4, 2021
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Product Info for Faxon Firearms AR-15 5.56 NATO Pencil Profile Threaded Barrels

Upgrade your weapon with a Faxon Firearms 5.56 NATO Pencil Rifle Barrel to improve your accuracy and your rifle's reliability in the field. Faxon Firearms built these AR15 Barrels from 4150 Mil-Spec steel with a nitride finish both inside and out for maximum durability as well as resistance to corrosion and abrasion. Each Faxon Firearms 5.56 NATO Nitrided Pencil Rifle Barrel is button-rifled, creating a more precise barrel design with consistent bore and groove dimensions. These barrels are also fully stressed relieved and 11-degree target crowned to guarantee your best shots yet. Coming in at 10.5, 14.5, and 16. sizes, these pencil barrels provide superior quality at an affordable price tag. Equip this Faxon Firearms Pencil Profile AR15 Barrel to advance your aim and deliver precise results down range.image

WARNING: California`s Proposition 65

Specifications for Faxon Firearms AR-15 5.56 NATO Pencil Profile Threaded Barrels:

Manufacturer: Faxon Firearms
Color: Black Nitride
Finish: Nitride
Fabric/Material: 4150 CMV
Caliber: 5.56x45mm NATO
Barrel Profile: Pencil
Gas Block Journal Size-Diameter: .625 in
Barrel Twist Rate: 1-8
Barrel Material: 4150 Chrome Moly Vanadium
Flutes: No
Gun Make: AR Platform
Gun Model: AR-15
Included Accessories: None
Condition: New
Gas Block Journal Size-Length: 1.1 in
Gun Type: Rifle
Firearms Threads Per Inch: 1/2x28
Rifling Profile: Button Rifling

Features of Faxon Firearms AR-15 5.56 NATO Pencil Profile Threaded Barrels

  • Manufactured 100% in-house
  • Fully stress relieved, air-gauge tested, and 11-degree target crowned
  • Barrel Extension: M4
  • Magnetic Particle Inspected

Package Contents:

  • Faxon Firearms AR-15 5.56 NATO Pencil Profile Threaded Barrels

What firearm models does the manufacturer say Faxon Firearms AR-15 5.56 NATO Pencil Profile Threaded Barrels is compatible with?

The manufacturer says that Faxon Firearms AR-15 5.56 NATO Pencil Profile Threaded Barrels is compatible with AR-15

Faxon Firearms AR-15 5.56 NATO Pencil Profile Threaded Barrels Orderable Models

List of Orderable Models

  • Faxon Firearms 10.5in Pencil Profile AR15 Barrel, 5.56 NATO, Carbine Length, 4150 QPQ, 15A58C10NPQ , MPN: 15A58C10NPQ , UPC: 816341023086 , Code: 11I-ATB-FF556PRB-15A58C10NPQ
  • Faxon Firearms Faxon Duty Series AR15 Barrel, 556 Nato Pencil Profile Threaded Barrels, 14.5 in, 1-8 Twist, Nitride, Black, 15A58M14NPQ , MPN: 15A58M14NPQ , UPC: 816341020085 , Code: 11I-ATB-FF556PRB-15A58M14NPQ
  • Faxon Firearms 16in Pencil Profile AR15 Barrel, 556 Nato, Pinned Gas Block, 15A58M16NPQ , MPN: 15A58M16NPQ , UPC: 816341020146 , Code: 11I-ATB-FF556PRB-15A58M16NPQ

Faxon Firearms AR-15 5.56 NATO Pencil Profile Threaded Barrels Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 4150 QPQ, 15A58M16NPQ-APGB , MPN: 15A58M16NPQ-APGB-EDEMO , Code: 11I-ATB-FF556PRB-15A58M16NPQ-APGB-EDEMO-IN-C
  • Faxon Firearms 16in Pencil Profile AR15 Barrel, 5.56 NATO, Mid-Length, 416-R Stainless Steel QPQ, 15B58M16NPQ , MPN: 15B58M16NPQ , UPC: 816341020313 , Code: 11I-ATB-FF556PRB-15B58M16NPQ
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