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Rosco Manufacturing K9
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Rosco Manufacturing

K9

$185.00
Available California compliant

Rosco Manufacturing K9 Barrel, Kinetic Consulting, Continuous Profile, 5.56 NATO, 11.5" Threaded Barrel, 1/2X28 Thread Pitch, 1:7 Barrel Twist, 416R Stainless Steel, Patrol-Length Gas System, Fits AR15, Nitride Finish, Black, Includes Patrol-Length Gas Tube K9-115-HY-DUFFY-556-7-PT

Key Details
Brand Rosco Manufacturing
Manufacturer Part Number K9-115-HY-DUFFY-556-7-PT
UPC 850039693083
SKU ROSK9-115HY-D-556-7-PT
Current Stock 36 available
Quantity Updated Apr 30, 2026 9:30 AM
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Purchase Requirements
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

The K9 11.5 features a proprietary patrol-length gas system that is smoother than carbine length and more reliable than mid-length. It has an optimized gas port designed to run reliably whether suppressed or unsuppressed. The K9 continuous taper is the most effective profile for dissipating heat from heavy use. By shifting weight to the back of the barrel, modern attachments on the front help create a perfectly balanced and easier-to-handle rifle. The updated target crown, inherited from the Purebred series, offers improved harmonics, fit, and finish.

Features
  • 11.5, Patrol-Length Gas System"
  • 1/2X28 Thread Pitch
  • 1:7 Twist
  • 416R Construction
  • Nitride Finish
  • Includes Patrol-Length Gas Tube
Specifications
UPC: 850039693083
Manufacturer: Rosco Manufacturing
Manufacturer Part #: K9-115-HY-DUFFY-556-7-PT
Model: K9
Barrel Length: 11.5"
Finish: Melonite
Type: Barrel