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AR-15 14.5" Bloodline Bbl M4 Carbine 1-7tw 1/2-28 5.56 NATO

Rosco Manufacturing · Barrels

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AR-15 14.5" Bloodline Bbl M4 Carbine 1-7tw 1/2-28 5.56 NATO

Best price

$147.60at Kentucky Gun Co

In stock Lowest in 30 dayschecked Nov 13, 2026

Buy at Kentucky Gun Co

Compare 12 stores

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
Carbine · Handguards
Muzzle thread
1/2x28 · Muzzle devices
Barrel length
14.5" · Handguards

Specifications

Manufacturer
Rosco Manufacturing
Color
Black
Platform
AR-15
Caliber
5.56 mm NATO
Gas system
Carbine
Barrel length
14.5"
Twist rate
1:7
Thread pattern
½ x 28

Where to buy

StorePriceAvailabilityBuyAdd to build
Kentucky Gun Co Best price $147.60checked Nov 13, 2026 In stock Buy at Kentucky Gun Co
OpticsPlanet $162.00Salechecked Nov 13, 2026 In stock Buy at OpticsPlanet
Ammunition Depot $162.00checked Nov 13, 2026 In stock Buy at Ammunition Depot
GunMag Warehouse $162.99checked Nov 13, 2026 In stock Buy at GunMag Warehouse
Battlehawk Armory $123.81Salechecked Oct 28, 2026 Check store Buy at Battlehawk Armory
GrabAGun $139.99Salechecked Nov 13, 2026 Check store Buy at GrabAGun
Dirty Bird $147.60checked Nov 13, 2026 Check store Buy at Dirty Bird
AR15Discounts 5% off $154.95checked Nov 13, 2026 Check store Buy at AR15Discounts
Classic Firearms $162.00checked Nov 13, 2026 Check store Buy at Classic Firearms
Palmetto State Armory $162.99Salechecked Nov 13, 2026 Check store Buy at Palmetto State Armory
Brownells 17.76% off · ends Nov 15 · exclusions apply $137.50checked Nov 13, 2026 Out of stock Buy at Brownells
MidwayUSA $162.00checked 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: $147.60 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$154.95$154.95$154.95
Ammunition Depot$162.00$162.00$162.00
Battlehawk Armory—$123.81$123.81
Brownells$137.50$137.50$137.50
Classic Firearms$162.00$162.00$162.00
Dirty Bird$147.60$147.60$147.60
GrabAGun$139.99$139.99$139.99
GunMag Warehouse$162.99$162.99$162.99
Kentucky Gun Co$147.60$147.60$147.60
MidwayUSA$162.00$162.00$162.00
OpticsPlanet$162.00$162.00$162.00
Palmetto State Armory$162.99$162.99$162.99

Since Sep 28, 2026.

About this part

The AR-15 14.5" Bloodline Bbl M4 Carbine 1-7tw 1/2-28 5.56 NATO is a 14.5" 5.56 / .223 barrel from Rosco Manufacturing with a carbine gas system. It's sold by 12 stores (4 in stock), from $123.81 to $162.99. The lowest in-stock price in the last 30 days was $147.60 at Kentucky Gun Co.

From the manufacturer

The Rosco 5.56 barrels are designed to meet the modern-day carbine shooters requirements. Rosco Manufacturing is a long way from your daddy's "Sporter" AR, and those specs just won't cut it anymore. From properly managed dwell times for SBR's, to running Suppressed, or setting up a balanced patrol carbine they have incorporated your needs into our engineering. Rosco has successfully accomplished this by picking the right twist rates, gas port diameters, and barrel materials according to the barrel they are making (not a lazy blanket method). They have also balanced input from our consumers and military end users to bring you the product you need, not just the Mfg: Rosco Manufacturing

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