Faxon Firearms Duty Series, 15a58m16npq 556 16 Pencil Ml Nit

Faxon Firearms Duty Series, 15a58m16npq 556 16 Pencil Ml Nit

Faxon Firearms Duty Series 16″ Pencil Profile 5.56 NATO Barrel, Nitride

So you want a lighter AR-15 without losing accuracy. This barrel gets you there. Faxon’s Duty Series 16 inch Pencil profile, chambered in 5.56 NATO. Mid-length gas system. Black nitride finish, inside and out.

This is not a heavy government profile barrel. Also, this is not a budget barrel cutting corners on QC. First, this barrel uses Faxon’s signature Pencil contour. So it shifts weight rearward, off your hands. Next, it’s button-rifled from 4150 CMV steel. Finally, every barrel gets air-gauge tested and headspace verified before it ships.

Will this barrel fit my AR-15?

Yes. So this barrel uses a standard M4 barrel extension. Therefore, it fits any standard mil-spec AR-15 upper receiver. Also, it pairs with standard AR-15 bolt carrier groups and mid-length gas tubes. First, confirm your upper accepts a mid-length gas system. Next, you’re set for install.

What makes the Pencil profile different?

Faxon Firearms Duty Series, 15a58m16npq 556 16 Pencil Ml Nit   Weight savings, without giving up accuracy. So the Pencil contour trims down material compared to a government or heavy profile barrel. Also, that weight comes off the front end specifically. Therefore, your rifle balances better and feels quicker to move on target. First-time Pencil barrel owners often notice the difference immediately when shouldering the rifle.

Is this barrel actually durable, or just lightweight?

Faxon Firearms Duty Series, 15a58m16npq 556 16 Pencil Ml Nit  Both. So Faxon builds this from 4150 Chrome Moly Vanadium steel, the same grade trusted across mil-spec barrels. Also, the black nitride finish treats the barrel inside and out. Therefore, you get corrosion resistance and easier cleaning, not just a thinner profile. Stress relieving and magnetic particle inspection happen before nitride treatment, catching defects early.

What twist rate does this Faxon Firearms Duty Series, 15a58m16npq 556 16 Pencil Ml Nit use?

1:8 twist. So this rate handles a wide range of 5.56 and .223 bullet weights well. Also, it’s a versatile choice if you shoot varying ammo types, from lightweight to heavier loads. Therefore, you’re not locked into one specific bullet weight for best accuracy.

Who is this barrel best for?

This fits shooters who want a lightweight, all-day carry rifle. So if you’re building a patrol rifle, a training carbine, or just want less forward weight on the range, this barrel works. Also good for competition shooters who need fast target transitions, and anyone tired of muzzle-heavy AR builds.

Specs Table

FAQ

Will this barrel fit a standard AR-15 upper? Yes. It uses a standard M4 extension and fits any mil-spec AR-15 Upper receiver.

What’s the twist rate on this barrel? 1:8, suited to a wide range of 5.56 and .223 bullet weights.

Is this barrel chrome lined? No. It uses a black nitride finish instead of chrome lining for corrosion resistance and easier cleaning.

Does this barrel come with a gas block? No, not in this configuration. It accepts a .625″ gas block on a 1.1″ journal, sold separately.

What gas system length does this barrel use? Mid-length. This pairs with mid-length gas tubes and standard AR-15 BCGs.

Why choose a Pencil profile over a heavier barrel? Less forward weight means better balance and faster handling, especially for all-day carry or quick target transitions.

Does Faxon offer a warranty on this barrel? Yes. Faxon backs this barrel with their Lifetime Guarantee, covering manufacturing and material defects to the original purchaser.

Find more Faxon barrels and AR-15 build parts at gunpartspalace.com.