KAK OE-SPEC 5.56 AR-15 Barrel – 16” Chrome Lined, Phosphate, Mid-Length Gas
Not Yet Rated | Write the First Review SKU: 222-KAK-121-0212-010
UPC: 811163000000
MFG#: 121-0212-010

Upgrade your rifle with the OE-SPEC 16" 5.56 AR-15 Barrel, built for shooters who demand reliability, durability, and accuracy. This barrel combines the proven benefits of a chrome lined bore, a phosphate finish, and a mid-length gas system to deliver smoother recoil, long-lasting performance, and mil-spec dependability. Whether you’re building a new upper or replacing an old barrel, this is a go-to option trusted by AR-15 enthusiasts.

Why Choose a Chrome Lined 16" AR-15 Barrel?

Not all barrels are created equal. A chrome lined barrel offers exceptional resistance to heat and corrosion, making it ideal for high-volume shooters and anyone who values long-term performance. The phosphate finish further protects the barrel, while the mid-length gas system provides a balanced shooting experience with less felt recoil.

• Length: 16 inches – the most versatile AR-15 barrel size

• Gas System: Mid-length for smoother recoil and improved reliability

• Bore: Chrome lined for durability and easier cleaning

• Finish: Mil-spec phosphate coating

• Caliber: 5.56 NATO (safe for .223 Rem)

• Made in the USA: Produced in-house from KAK Industry blanks

Features & Specifications

• Chambered in 5.56 NATO

• Length: 16 inches

• Gas System: Mid-length

• Gas Block Size: Standard .750

• Twist Rate: (Insert actual twist rate – confirm if 1:7 or 1:8)

• Material: Precision-machined chrome lined steel

• Finish: Phosphate coated for corrosion resistance

• Weight: 1 lb 9.7 oz (approx.)

• Markings: Clearly marked for caliber and twist

• Quality Control: Air-gauge inspected for bore tolerances and headspace

Why Mid-Length Gas Matters

Many shooters prefer mid-length gas over carbine systems because it delivers a smoother recoil impulse and reduces wear on internal parts. That means a rifle that runs cleaner, lasts longer, and stays on target more easily during rapid fire.

Who This Barrel Is For

• Builders looking for a dependable AR-15 barrel with mil-spec features.

• Shooters who want chrome lining for heavy use and extended barrel life.

• Enthusiasts who prefer the balance of a mid-length gas system.

• Collectors who demand U.S.-made quality from start to finish.

FAQ – OE-SPEC 5.56 AR-15 Barrel 16"

Q: Is this barrel compatible with .223 Remington ammo?
A: Yes. It is chambered in 5.56 NATO and safely shoots both 5.56 and .223 Rem.

Q: What makes chrome lining better than other finishes?
A: Chrome lining increases barrel life, resists corrosion, and makes cleaning easier, especially under high round counts.

Q: Why choose a mid-length gas system over a carbine system?
A: Mid-length gas reduces recoil, decreases wear on parts, and provides smoother cycling compared to carbine-length setups.

Q: Is this barrel made in the USA?
A: Yes. KAK Industry produces these barrels in-house from our own blanks, ensuring consistent quality control.

Q: Does this barrel come headspaced and inspected?
A: Yes. Each barrel is air-gauge inspected and checked with calibrated gauges for proper headspace.

Final Thoughts

The OE-SPEC 16" 5.56 AR-15 Barrel is a top choice for builders and shooters who demand a balance of durability, reliability, and accuracy. With chrome lining, a phosphate finish, and a mid-length gas system, this barrel delivers performance that lasts.

👉 Add it to your build today and experience the difference that mil-spec quality makes.