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Faxon Firearms .308 Winchester Pencil Rifle Barrel Up to 17% Off, Blazin' Deal w/ Free Shipping — 2 models

Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
1 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
2 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
3 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
4 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
5 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
6 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
7 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
8 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
9 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
10 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ
11 of 11 images
Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ

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Questions & Answers
Compatible with Aero m5 upper? Manufacturer Answer

Yes, the barrels are DPMS Gen 1/LR-308 pattern and should fit the Aero M5 upper receiver

by Faxon Firearms, Manufacturer, May 28, 2025
Is this compatible with a 2A Armament Xanthos Lite rifle build? Manufacturer Answer

All of our AR10 barrels are compatible with DPMS Gen1 upper receivers.

by Faxon Firearms, Manufacturer, September 27, 2023
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Great, lightweight barrel by Free Man, Verified Owner, February 20, 2026
This barrel shaved off 11.7oz from my PSA P10 (gen 3). The 16" PSA barrel alone weighs 2lb 9oz for reference. It should do well for me out in the deer woods.
1/1 found this helpful
Helpful Positive Review
The best barrel to go with an ultralight AR10 build by Bryan Verduzco, Verified Owner, May 14, 2020
Bought this barrel because I wanted the lightest AR10 possible that didnt sacrifice any accuracy or functionality. Because of that, I ended up getting the 20" pencil barrel for my build since I always believed 20" is the sweet spot for 308. The barre...
Read More...
6/9 found this helpful
Helpful Positive Review
faxon 308 pencil by Doc, October 23, 2020
Faxon is a quality company ,the 20inch 308 pencil shoots a half a minute angle cold and there is no impact shift with a hot barrel 3/4 in hot. They sure know how to stress relief a barrel .having 20 in barrel with this profile and shoot as good as it...
Read More...
3/3 found this helpful
Helpful Positive Review
Great Barrel by TZ, Verified Owner, May 5, 2024
Faxon .308 pencil barrel is a great choice and budget friendly for anyone looking to lighten up their AR10. I had a full aero precision build including their 20” stainless steel barrel. Aero makes a great barrel as well, but my goal was to make a hun...
Read More...
1/1 found this helpful
Helpful Positive Review
Must buy for hunting rifle build! by Johnathon Wilson, Verified Owner, October 18, 2022
Finished this rifle in December last year and finally got a chance to test it in the field. Aero upper, lower, and hand guard vortex tactical 4-16 moa scope, lantac bcg, and the faxon 20” pencil 308 barrel. Shot it all summer getting sub moa groups a...
Read More...
6/7 found this helpful
Most Recent Reviews
Light barrel shoots well by Tex0311, Verified Owner, June 6, 2026
I bought this barrel for an AR10 battle rifle build. I went with the pencil profile to try and save a little weight. This barrel shoot quite well for a pencil profile. The finish is great and the tolerances are spot on. Headspace is perfect, gas bloc...
Read More...
Read All 11 Reviews

Let's Start Celebrating Already! Save up to 20% on Faxon Firearms Products

See promotional details
Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
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Product Info for Faxon Firearms .308 Winchester Pencil Rifle Barrel

Hailed for its lightweight construction and unparalleled performance down range, the Faxon Firearms .308 WIN Pencil Rifle Barrel is a premium upgrade for your firearm. Each of these AR15 Barrels by Faxon Firearms are nitride treated inside and out for superior corrosion resistance against harsh elements. This Faxon Firearms .308 WIN Mid-Length Pencil Barrel is fully stress relieved and air-gauge tested and utilize an 11-degree target crown that greatly increases your accuracy at the range. Land more shots on target by upgrading to this Faxon Firearms .308 WIN 4150 Pencil Rifle Barrel.image

WARNING: California`s Proposition 65

Specifications for Faxon Firearms .308 Winchester Pencil Rifle Barrel:

Manufacturer: Faxon Firearms
Color: Black Nitride
Finish: Nitride
Fabric/Material: 4150 Steel
Caliber: .308 Winchester
Barrel Profile: Pencil
Gas Block Journal Size-Diameter: .750 in
Barrel Twist Rate: 1-10
Barrel Material: 4150 Chrome Moly Vanadium
Flutes: No
Gun Make: AR Platform
Gun Model: AR-15
Condition: New
Gas Block Journal Size-Length: 1.1 in
Gun Type: Rifle
Firearms Threads Per Inch: 5/8x24

Features of Faxon Firearms .308 Winchester Pencil Rifle Barrel:

  • Barrel Material: 4150 CMV
  • Barrel Caliber: .308 WIN
  • Barrel Twist: 1:10
  • Barrel Profile: Pencil
  • Inside Finish: Salt Bath Nitride
  • Outside Finish: Salt Bath Nitride
  • Muzzle Thread: 5/8-24 TPI
  • Barrel Extension: LR-308 (DPMS Compatible)
  • Magnetic Particle Inspected
  • 11-degree Target Crown

Package Contents:

  • Faxon Firearms .308 Winchester Pencil Rifle Barrel

What firearm models does the manufacturer say Faxon Firearms .308 Winchester Pencil Rifle Barrel is compatible with?

The manufacturer says that Faxon Firearms .308 Winchester Pencil Rifle Barrel is compatible with AR-15

Faxon Firearms .308 Winchester Pencil Rifle Barrel Orderable Models

List of Orderable Models

  • Faxon Firearms .308 Winchester Pencil Rifle Barrel, Mid-Length, 4150 QPQ Nitride, Black Nitride, 16, 10A810M16NPQ , MPN: 10A810M16NPQ , UPC: 816341023277 , Code: 11I-ATB-308WINP-10A810M16NPQ
  • Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 18, 10A810R18NPQ , MPN: 10A810R18NPQ , UPC: 816341023291 , Code: 11I-ATB-308WINP-10A810R18NPQ

Faxon Firearms .308 Winchester Pencil Rifle Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • Faxon Firearms .308 Winchester Pencil Rifle Barrel, Rifle-Length, 4150 QPQ Nitride, Black Nitride, 20, 10A810R20NPQ , MPN: 10A810R20NPQ , UPC: 816341023314 , Code: 11I-ATB-308WINP-10A810R20NPQ
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