FAXON Firearms Pencil Barrel 5.56mm NATO 10.5 1-8 Carbine-Length Black
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Faxon Firearms
Overview
The Faxon Firearms Pencil Barrel is a lightweight 16-inch barrel designed for 5.56 NATO caliber, featuring a 1:8 twist rate that stabilizes a variety of bullet weights for improved accuracy. Its .625 gas block diameter and pistol-length gas system contribute to a responsive cycling and reduced recoil, making it ideal for fast-paced shooting scenarios. This barrel is commonly found in builds focused on performance and maneuverability, especially in carbine configurations.
Specifications
FAXON Firearms Pencil Barrel 5.56mm NATO 10.5 1-8 Carbine-Length Black
Build history on GunPartPicker
Builders have been adding the FAXON Firearms Pencil Barrel 5.56mm NATO 10.5 1-8 Carbine-Length Black to their builds on GunPartPicker since February 2026. All time, it ranks #374 of the 815 barrels builders have added. Builds with this barrel are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 5 of the 9 retailers we track have it in stock. Prices barely moved in September 2026, holding around $151.80, so there haven't been real sales lately. Buying today, the lowest price is $151.80 at Brownells, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 10 builds that include this one
Aero Precision AR-15 Stripped Upper Receiver, No Forward Assist Black
Mike-102 Stripped Lowers - Mike-102 Stripped Lower Receiver 5.56mm
Spike's Tactical 5.56 NATO M16 Cut Lightweight AR-15 Bolt Carrier Group - Nickel Boron
Rise Armament Super Sporting AR15/10 Single Stage Trigger - Flat - Dtom Special Edition
Strike Industries AR-15 Gas Tube - Carbine Length
Aim Sports 10" Aluminum Free Floating Mid-Length Quad Rail, Anodized Black - MT061
Builds Featuring This Part
See all 4 →Builds in the community that include the Faxon Firearms Pencil Barrel 5.56mm Nato 10.5 1-8 Carbine-Length Black
| Build | Parts | Total |
|---|---|---|
 | 28 | $3952.26 |
 | 16 | $885.41 |
 | 27 | $2086.96 |
 | 16 | $1293.33 |
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