Rosco K9 13.95" Greenline Tactical 5.56 NATO Mid-Length Barrel
13.95" nitrided 416R stainless 5.56 mid-length barrel with a continuous taper, built for pin-and-weld or SBR carbines.
- Price
- $215
- Weight
- 1 lb 13.8 oz
- Brand
- Rosco Manufacturing
- Category
- Barrels
Featured in
Features
- •13.95" length, continuous taper profile
- •Mid-length gas system (tube included)
- •5.56 NATO, 1:7 twist
- •416R stainless, nitride finish
- •.750" gas journal, 1/2x28 threads
- •29.8 oz
More AR-15 guides & articles
Guides
Overview
The Rosco K9 13.95" Greenline Tactical barrel puts the K9 recipe on a pin-and-weld length: 416R stainless steel, nitride finish on the barrel and the barrel extension, a continuous taper profile, and a mid-length gas system. It runs a 1:7 twist, 1/2x28 muzzle threads, a .750" gas journal, and a recessed target crown, weighs 29.8 oz, and ships with the mid-length gas tube. The gas block is a separate purchase.
At 13.95 inches the barrel needs a permanently attached muzzle device that extends at least 2.05 inches past the muzzle to reach the 16-inch federal minimum for a non-NFA rifle; otherwise it belongs on a registered SBR or a pistol. Against a 14.5" pin-and-weld barrel it trims a little length, and against the chrome-lined PSA Sabre 13.7" or Criterion CORE it trades service life under sustained fire for the accuracy-leaning stainless bore.
Key Features
- 13.95" 5.56 NATO barrel for pin-and-weld or SBR carbines
- 416R stainless steel with nitride barrel and extension finish
- Mid-length gas system with mid-length gas tube included
- Continuous taper profile with weight carried toward the chamber
- 1:7 twist for 55 to 77 grain 5.56 loads
- .750" gas journal and 1/2x28 muzzle threads
- Recessed target crown
Pros
- +Nitrided 416R stainless at a value-tier price
- +Standard mid-length gas, so any mid-length tube and .750" gas block fit
- +Mid-length gas tube ships with the barrel
- +13.95" length builds a shorter pin-and-weld carbine than a 14.5" barrel
Cons
- −416R stainless gives up service life to chrome-lined CHF barrels under sustained high-volume fire
- −Non-NFA rifle use requires a pinned and welded muzzle device extending at least 2.05 inches past the muzzle
- −At 29.8 oz it is heavier than Government-profile 14.5" barrels
Detailed Specifications
- Length
- 13.95"
- chamber
- 5.56 NATO
- twist
- 1:7
- Material
- 416R stainless steel
- Finish
- Nitride (barrel and barrel extension)
- profile
- K9 continuous taper
- gasSystem
- Mid-length (gas tube included)
- gasJournal
- .750"
- muzzleThreads
- 1/2x28
- crown
- Recessed target
- weight
- 29.8 oz
- sku
- K9-1395-HY-THEDON-556-7-M
- madeIn
- USA (Rhode Island)
Pairs Well With
Top matches
Similar Products
Compatible Platforms
+79 more
Custom
Custom AR-15 (Build From Scratch)
Dark Storm Industries
Dark Storm DS-15 Thunderbolt Bolt Action 5.56
LaRue Tactical
LaRue BAR*NONE Small Block
Palmetto State Armory
PSA PA-15 16" Carbine
Palmetto State Armory
PSA 8.5" 338 ARC HAR-15 Pistol
Palmetto State Armory
PSA Sabre Enhanced Mixtape Vol. 1 8" 300 BLK Pistol
Compatibility Tags
Build Your Custom Configuration
Add the Rosco K9 13.95" Greenline Tactical 5.56 NATO Mid-Length Barrel to your build and see how it enhances your platform.