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K9 13.95" Mid-Length Barrel 1-7tw 1/2-28 5.56mm

Rosco Manufacturing · Barrels

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K9 13.95" Mid-Length Barrel 1-7tw 1/2-28 5.56mm

Best price

$163.52at Kentucky Gun Co

In stock Lowest in 30 dayschecked Nov 13, 2026

Buy at Kentucky Gun Co

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Fits and works with

Caliber
5.56 / .223 · Shop matching ammo
Bolt
Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Gas system
Mid-length · Handguards
Muzzle thread
1/2x28 · Muzzle devices
Barrel length
13.95" · Handguards

Specifications

Manufacturer
Rosco Manufacturing
Color
Black
Platform
AR-15
Caliber
5.56 mm NATO
Gas system
Mid
Barrel length
13.95"
Twist rate
1:7
Thread pattern
½ x 28
Weight
29.8 oz

Where to buy

StorePriceAvailabilityBuyAdd to build
Kentucky Gun Co Best price $163.52checked Nov 13, 2026 In stock Buy at Kentucky Gun Co
OpticsPlanet $193.50Salechecked Nov 13, 2026 In stock Buy at OpticsPlanet
Ammunition Depot $193.50checked Nov 13, 2026 In stock Buy at Ammunition Depot
GunMag Warehouse $193.99checked Nov 13, 2026 In stock Buy at GunMag Warehouse
Battlehawk Armory $147.88Salechecked Oct 28, 2026 Check store Buy at Battlehawk Armory
Dirty Bird $180.00checked Nov 13, 2026 Check store Buy at Dirty Bird
AR15Discounts 5% off $189.95checked Nov 13, 2026 Check store Buy at AR15Discounts
GrabAGun $193.50Salechecked Nov 13, 2026 Check store Buy at GrabAGun
Brownells 17.76% off · ends Nov 15 · exclusions apply $162.00checked Nov 13, 2026 Out of stock Buy at Brownells
MidwayUSA $193.50checked Nov 13, 2026 Out of stock Buy at MidwayUSA

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $163.52 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$189.95$189.95$189.95
Ammunition Depot$193.50$193.50$193.50
Battlehawk Armory—$147.88$154.99
Brownells$162.00$162.00$162.00
Dirty Bird$180.00$180.00$180.00
GrabAGun$193.50$193.50$193.50
GunMag Warehouse$193.99$193.99$193.99
Kentucky Gun Co$163.52$163.52$163.52
MidwayUSA$193.50$172.36$193.50
OpticsPlanet$193.50$193.50$193.50

Since Sep 28, 2026.

About this part

The K9 13.95" Mid-Length Barrel 1-7tw 1/2-28 5.56mm is a 13.95" 5.56 / .223 barrel from Rosco Manufacturing with a mid-length gas system. It's sold by 10 stores (4 in stock), from $147.88 to $193.99. The lowest in-stock price in the last 30 days was $163.52 at Kentucky Gun Co.

From the manufacturer

The K9 11.5" and 12.5" barrels offer a proprietary patrol length gas system that is smoother than carbine length, more reliable than mid-length. Features an optimized gas port to run reliably suppressed and/or unsuppressed. The 13.95" Barrel features a mid-length gas tube, with the rest of the barrel specs remaining the same as the 11.5" and 12.5" barrels. The K9 continuous taper is the most effective profile to dissipate heat from hard use. With weight shifted to the back of the barrel, modern attachments on the front of the rifle create a perfectly balanced and better handling rifle. Updated target crown carried over from the Purebred series with improved h Mfg: Rosco Manufacturing

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