New HWK XL Suppressor-Ready Handguard | Check it out

Rosco Manufacturing K9 AR-15 Barrel – 16″- 5.56 NATO – Intermediate Length – w/Intermediate Gas Tube

Be the first to review

SKU: K9-16-HY-556-7-I

Out of Stock
Orders will Ship within 1 Business Day
Rosco Manufacturing Returns & Warranty!
TOP ADD-ON'S

AT3™ Forged AR-15 Stripped Upper Receiver - Black

$89.99
AT3™ SPEAR M-LOK™ AR-15 Free Float Handguard - 12 & 15 inch Lengths

AT3™ SPEAR M-LOK Handguard for AR-15 - 15 Inch - Black

$114.99

AR-15 Barrel with Intermediate Gas Tube For Combat-Ready Performance

The Rosco Manufacturing 16″ K9 5.56 NATO AR-15 Barrel with Intermediate Gas Tube is the ultimate duty-ready upgrade for shooters seeking a balance of accuracy, durability, and smooth recoil. The intermediate gas system reduces felt recoil and minimizes bolt carrier group wear, leading to smoother shooting. The 1:7 twist rate and premium bore finish ensure consistent sub-MOA accuracy when paired with quality ammunition. A refined continuous tapered profile for enhanced weight distribution keeps the weight of the barrel closer to the back of the rifle while preserving heat mitigation and precision.

Features

  • Cold Hammer-Forged Construction – Crafted from 4150 Chrome Moly Vanadium (CMV) steel, ensuring exceptional strength, longevity, and heat resistance under high rates of fire.
  • Melonite QPQ Finish – Provides superior corrosion and wear resistance, reducing barrel fouling and extending overall service life.
  • Intermediate-Length Gas System – Offers smoother cycling, reduced recoil, and enhanced reliability, balancing mid-length and rifle-length gas system performance for optimal function.
  • 1:7 Twist Rate – Stabilizes a wide range of bullet weights, from lightweight varmint rounds to heavy, long-range projectiles, maximizing accuracy at various distances.
  • .750 Gas Block Journal – Compatible with standard AR-15 gas blocks, allowing easy installation and customization.
  • Threaded 1/2×28 Muzzle – Ready for muzzle devices or suppressors, providing customization options for recoil management and noise reduction.

Specifications

  • Brand: Rosco Manufacturing
  • Model: 16 Inch K9 5.56 NATO AR-15 Barrel with Intermediate Gas Tube
  • MPN: K9-16-HY-556-7-I
  • Fit: AR-15
  • Caliber: 5.56
  • Gas Block Size: .750
  • Gas System Length: Intermediate
  • Barrel Twist: 1/7
  • Thread: 1/2×28
  • Material: 416R Steel
  • Finish: Melonite Nitride
  • Color: Black
  • Weight: 34.5 oz
  • Length: 16 Inch

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Rosco Manufacturing Returns & Warranty

  • Rosco Manufacturing prides itself on creating a well-made product and taking care of its customers. That being the case we will warranty against any defects stemming from manufacturing, or if you received the incorrect part.
  • To be eligible for a return, the customer must contact our Customer Service/ Sales Department and make them aware of the issue first. If the issue is related to a technical matter, we will try and resolve it by troubleshooting before we exchange the product or issue a return/ refund.
  • If a return is authorized, we will send a shipping label to the customer to use and send the item back to us. The item must be in the original packaging and have the receipt or proof of purchase in the box.

In the event that you receive a product that you changed your mind about or your build needs have changed, we will extend you the following refund policy:

  • The original customer has 30 calendar days to return an item from the date they received it, with no exceptions.
  • To be eligible for a return, your item must be unused and in the same condition that you received it.
  • The item must be in the original packaging and have the receipt or proof of purchase in the box.
  • We ultimately still hold the right to deny a return if terms are not met, or there are other determining factors that prompt us to deny one.

Refunds

  • Once we receive the item back, we will inspect it and notify you that we have received the returned item.
  • We will immediately notify you of the status of your new product or refund after inspecting the item.
  • If your return is approved, we will send you a new product or initiate a refund to your credit card (or original method of payment) minus a 10% restocking fee (depending on the reason for return).
  • You should receive the credit within a certain amount of days, depending on your card issuer’s policies.

Contact Details:

  • Telephone: 401-228-0120
  • Email: sales@roscomanufacturing.com

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Leave your review
Rating

Customers who viewed this item also viewed these products

Rosco Manufacturing 13.95 Inch K9 5.56 NATO AR-15 Barrel with Midlength Gas Tube

Rosco Manufacturing K9 AR-15 Barrel - 13.95" - 5.56 NATO...

$184.50
13.95″ Barrel For a Balance of Great Ballistics and Improved Ergonomics The Rosco Manufacturing
Rosco Manufacturing 10.5 Inch Sauce Pack - AR-15 Barrel

Rosco Manufacturing Sauce Pack AR-15 Barrel - 10.5" - 5.56...

$266.36
10.5 Inch Sauce Pack with Bloodline Nitride AR-15 Barrel The Rosco “Sauce Pack” delivers
Rosco Manufacturing 12.5 Inch Sauce Pack - AR-15 Barrel

Rosco Manufacturing Sauce Pack AR-15 Barrel - 12.5" - 5.56...

(1)
$274.46
12.5 Inch Sauce Pack with Bloodline Nitride AR-15 Barrel The Rosco “Sauce Pack” delivers
Rosco Manufacturing 11.5 Inch Sauce Pack - AR-15 Barrel

Rosco Manufacturing Sauce Pack AR-15 Barrel - 11.5" - 5.56...

(1)
$269.96
11.5 Inch Sauce Pack with Bloodline Nitride AR-15 Barrel The Rosco “Sauce Pack” delivers
Rosco Manufacturing 13.7 Inch Sauce Pack - AR-15 Barrel

Rosco Manufacturing Sauce Pack AR-15 Barrel - 13.7" - 5.56...

$292.46
13.7 Inch Sauce Pack with Purebred Stainless AR-15 Barrel The Rosco “Sauce Pack” delivers
Rosco Manufacturing 12.5 Inch Sage Dynamics 5.56 NATO AR-15 Barrel with Patrol Gas Tube

Rosco Manufacturing Sage Dynamics AR-15 Barrel - 12.5" - 5.56...

$171.00
Tactical & Patrol-Ready Performance Made in collaboration with Aaron Cowan of Sage Dynamics and
Rosco Manufacturing Bloodline 16 Inch Midlength Barrel - 5.56 NATO

Rosco Manufacturing Bloodline Barrel - 16 Inch - 5.56 NATO...

(8)
$135.00
The Ideal Barrel For Great Balance Of Speed And Performance The Rosco Manufacturing Bloodline
Rosco Manufacturing Bloodline 10.5 Inch Carbine Barrel - 5.56 NATO

Rosco Manufacturing Bloodline AR-15 Barrel - 10.5" 5.56 NATO -...

(3)
$132.30
Perfect Addition To Any SBR or Pistol Build For Modern Day Shooters The Bloodline
Rosco Manufacturing Melonite Gas Tube

Rosco Manufacturing Melonite Gas Tube

(1)
$17.10
Extend the Service Life of Your Gas Tube Designed for military, law enforcement, and
Rosco Manufacturing Bloodline 11.5 Inch Carbine Barrel - 5.56 NATO

Rosco Manufacturing Bloodline Barrel - 11.5" - 5.56 NATO -...

(4)
$137.70
Perfect Addition To Any SBR or Pistol Build For Modern Day Shooters The Bloodline
Lantac AR-15 Intermediate Length Gas Tube - Black Nitride

Lantac AR-15 Intermediate Length Gas Tube - Black Nitride

$22.99
Eliminates Light Reflection & Matches Perfectly with Intermediate Barrels The Lantac AR-15 Intermediate Length
Faxon Firearms 16 inch Government/Socom Barrel – 5.56 NATO – Mid-Length – Pinned Gas Block - 4150 QPQ

Faxon Firearms AR-15 Barrel - 16" - 5.56 NATO -...

(2)
$197.80
Combination Of The Standard M4 Profile & A Heavy Profile The Faxon Firearms 16

AT3 Tactical AR-15 Barrel - 16" - 5.56 NATO -...

(1)
$125.00
16 Inch Government 5.56 NATO Barrel by AT3 Tactical With a sturdy profile and

AT3 Tactical AR-15 Barrel - 16" - 5.56 NATO -...

(1)
$125.00
16 Inch Pencil 5.56 NATO Barrel by AT3 Tactical Upgrade your AR-15 with a

Rosco Manufacturing Purebred AR-15 Barrel - 16" - .223 Wylde...

$198.90
Properly Tuned Stainless Steel Rosco Barrel The Purebred line of Rosco’s barrels offers superior

Questions & Answers

Don't see the answer
you're looking for?

Loading questions...