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Rosco Manufacturing Bloodline 5.56 NATO Barrel w/ Free Shipping — 5 models

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Questions & Answers
What length gas system does it need? Expert Answer

MPN: BL-105-M4-556-7-C uses a CARBINE length gas system.

by Armando R., Gear Expert, August 29, 2019
See 3 More Answers
Is the barrel dimpled for gas block Expert Answer

No, the barrel is not dimpled.

by Ben, Gear Expert, June 2, 2021
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review Great barrel for the price by Xander, Verified Owner, June 13, 2021
Bought this barrel to put on a budget rifle and these barrels are criminally under rated. These are as good as ballistic advantage and come in a much flashier package than the bubble wrap and plastic sleeve Ba ships their stuff in.
2/2 found this helpful
Helpful Positive Review 14.5" 5.56 Mid Length For $89.99 by NATHAN CUNNINGHAM, May 17, 2024
This is the first Rosco barrel ive owned and I got it for $89.99 before taxes & shipping. I used this to build a 2-Stamp ADM UIC SBR build and I have to saw this barrel worked perfectly with ADM UR,LR & 13.5" LW handgurd. Also installed TriggerTech D...
Read More...
1/1 found this helpful
Helpful Positive Review 11.5 in Bloodline barrel by peter, Verified Owner, May 20, 2019
Excellent barrel.... Used for pistol build. Perfect balance, perfect length! This barrel shoots great from the start. Matched with Aero Precision upper and 12 inch Aero fo forearm...added a Stoner linear compensator...love this barrel!
9/10 found this helpful
Helpful Positive Review Great Barrel by Wyatt Long, Verified Owner, February 22, 2020
This is an awesome barrel, great price, very accurate and recommended and used by plaid daddy Garand thumb himself. By this thing now. You won't be disappointed I can promise you that, unless you want to run steel case, I've found it works best with ...
Read More...
3/7 found this helpful
Helpful Positive Review 11.5" Bloodline barrel by Daniel, Verified Owner, August 8, 2022
I have several Roscoe brand barrels, BCG's and gas blocks. All of their stuff is high quality and definetly punches way above their price. I wouldn't hesitate to purchase any parts from Roscoe. Their packaging is also top quality, that shouldn't matt...
Read More...
3/3 found this helpful
Helpful Positive Review Garand Thumb likes them! by DoItAll, Verified Owner, April 30, 2022
After looking at the dozen or more options out there I decided to go with this barrel for a pistol build because they are cheap in price without being cheap in quality. I did watch a review from Garand Thumb and he ran one suppressed for tens of thou...
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1/3 found this helpful
Read All 55 Reviews
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Product Info for Rosco Manufacturing Bloodline 5.56 NATO Barrel

Rosco Manufacturing 5.56 (NATO) barrels are designed to meet the modern day carbine shooters requirements. We are a long way from our 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 Rosco has incorporated your needs into their 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 their consumers and military end users in order to bring you the AR15 Barrels you need, not just the one they want to sell you.image

Specifications for Rosco Manufacturing Bloodline 5.56 NATO Barrel:

Manufacturer: Rosco Manufacturing
Color: Black
Finish: Nitride
Fabric/Material: 4150 CMV Material
Caliber: 5.56x45mm NATO
Barrel Profile: M4
Threads per Inch: 1/2x28
Barrel Twist Rate: 1-7
Barrel Material: 4150 Chrome Moly Vanadium
Flutes: No
Gun Make: AR Platform
Gun Model: M4
Condition: New
Gas Block Journal Size-Length: 1.2 in
Gas System: Carbine Length

Features of Rosco Manufacturing Bloodline Barrel, M4 5.56 NATO

  • Gas Block Size .750
  • Barrel Crown 11 Degree

Package Contents:

  • Rosco Manufacturing Bloodline Barrel, M4 5.56 NATO
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Image of Rosco Manufacturing Bloodline 5.56 NATO Barrel 5 models Rosco Manufacturing Bloodline 5.56 NATO Barrel

Rosco Manufacturing Bloodline 5.56 NATO Barrel Orderable Models

List of Orderable Models

Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 11.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-115-M4-556-7-C , MPN: BL-115-M4-556-7-C , UPC: 2619651 , Code: 3FY-ATB-953GA-BL-115-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C , MPN: BL-125-M4-556-7-C , UPC: 181969500036 , Code: 3FY-ATB-953GA-BL-125-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C , MPN: BL-145-M4-556-7-C , UPC: 181969500043 , Code: 3FY-ATB-953GA-BL-145-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 16in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-16-M4-556-7-C , MPN: BL-16-M4-556-7-C , UPC: 181969500067 , Code: 3FY-ATB-953GA-BL-16-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C , MPN: BL-105-M4-556-7-C , Code: 3FY-ATB-953GA-BL-105-M4-556-7-C

Rosco Manufacturing Bloodline 5.56 NATO Barrel Unavailable & Discontinued Models

List of Unorderable Models

Open Box, Dealer Demo, Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C , MPN: BL-105-M4-556-7-C-DMO , Code: 3FY-ATB-953GA-BL-105-M4-556-7-C-DMO
Demo, Rosco Manufacturing Bloodline Barrel, M4 5.56 NATO, 11.5in, 1/7 Twist 1/2x28 TPI, 4150 CMV, Black Nitride, ROSBL-115-M4-556-7-C , MPN: BL-115-M4-556-7-C-DEMO , Code: 3FY-ATB-953GA-ROSBL-115-M4-556-7-C-DEMO
Open Box, Dealer Demo, Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 11.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-115-M4-556-7-C , MPN: BL-115-M4-556-7-C-DMO , Code: 3FY-ATB-953GA-BL-115-M4-556-7-C-DMO
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 11.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-115-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 16in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-16-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 11.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-115-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 16in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-16-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C
1 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 11.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-115-M4-556-7-C
2 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 11.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-115-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
3 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
4 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 16in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-16-M4-556-7-C
5 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 16in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-16-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C
6 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C
7 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 10.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-105-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 11.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-115-M4-556-7-C
8 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 11.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-115-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
9 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
10 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
11 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 12.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-125-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
12 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
13 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
14 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 14.5in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-556-7-C
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 16in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-16-M4-556-7-C
15 of 15 images
Rosco Manufacturing Bloodline 5.56 NATO Barrel, M4, 16in, Carbine, 1-7 Twist, 1/2x28 Thread, Nitride, Black, BL-16-M4-556-7-C

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