AR-15 11.5" Bloodline Bbl M4 Carbine 1-7tw 1/2-28 5.56 NATO

Name: AR-15 11.5" Bloodline Bbl M4 Carbine 1-7tw 1/2-28 5.56 NATO
Brand: Rosco Manufacturing

Rosco Manufacturing · Barrels

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AR-15 11.5" Bloodline Bbl M4 Carbine 1-7tw 1/2-28 5.56 NATO

Best price

$114.86at Battlehawk Armory

Sale checked Oct 12, 2026

Buy at Battlehawk Armory

Compare 10 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: 11.5" · Handguards

Specifications

Manufacturer: Rosco Manufacturing

Compatibility

Caliber: 5.56 mm NATO
Chamber: 5.56 NATO
Gas system: Carbine
Muzzle thread: ½ x 28
Platform: AR-15

Dimensions and weight

Barrel length: 11.5"

Materials and features

Twist rate: 1:7
Profile: M4
Barrel steel: 4150 CMV
Finish / lining: Nitride (QPQ / Melonite)
Fluted: No
Color: Black

Where to buy

Store	Price	Availability	Buy
Battlehawk Armory Best price	$114.86Salechecked Oct 12, 2026	Check store	Buy at Battlehawk Armory
GrabAGun	$129.99Salechecked Nov 14, 2026	Check store	Buy at GrabAGun
Dirty Bird	$137.70checked Nov 14, 2026	Check store	Buy at Dirty Bird
AR15Discounts 5% off	$144.95checked Nov 14, 2026	Check store	Buy at AR15Discounts
Palmetto State Armory	$150.99Salechecked Oct 11, 2026	Check store	Buy at Palmetto State Armory
Brownells 17.76% off · ends Nov 15 · exclusions apply	$99.99checked Nov 14, 2026	Out of stock	Buy at Brownells
OpticsPlanet	$137.70Salechecked Nov 14, 2026	Out of stock	Buy at OpticsPlanet
Kentucky Gun Co	$137.70checked Nov 14, 2026	Out of stock	Buy at Kentucky Gun Co
Ammunition Depot	$150.30checked Oct 12, 2026	Out of stock	Buy at Ammunition Depot
MidwayUSA	$150.30checked Nov 14, 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

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Lowest in-stock price in the last 30 days: $150.30 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
AR15Discounts	$144.95	$144.95	$144.95
Ammunition Depot	—	$150.30	$150.30
Battlehawk Armory	—	$114.86	$114.86
Brownells	$99.99	$99.99	$99.99
Dirty Bird	$137.70	$137.70	$137.70
GrabAGun	$129.99	$129.99	$129.99
Kentucky Gun Co	$137.70	$137.70	$137.70
MidwayUSA	$150.30	$150.30	$150.30
OpticsPlanet	$137.70	$137.70	$137.70
Palmetto State Armory	—	$150.99	$150.99

Since Sep 28, 2026.

About this part

The AR-15 11.5" Bloodline Bbl M4 Carbine 1-7tw 1/2-28 5.56 NATO is an 11.5" 5.56 / .223 barrel from Rosco Manufacturing with a carbine gas system. It's sold by 10 stores, from $99.99 to $150.99. The lowest in-stock price in the last 30 days was $150.30 at MidwayUSA.

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