Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers
What is the weight of this barrel? Expert Answer

I would recommend contacting the manufacture.
ROSCO MANUFACTURING 401-228-0120

by Ben, Gear Expert, September 28, 2021
What are the best/most compatible BCGs to use with this barrel? Manufacturer Answer

Kaw Valley and JP Enterprises are our two favorites

by Rosco Customer Service, Manufacturer, June 15, 2022
Customer Reviews
Helpful Positive Review
Master Piece by J Rams, Verified Owner, September 26, 2018
Highly recommend this barrel, so far over 300 rounds, looks and functions very well. Very nice workmanship, love that the threads are 1/28 unlike most 9mm barrels our there... batter to buy this barrel than a different piston for my can.
4/5 found this helpful
Read 1 Review
Color:
Black
Finish:
Nitride
Caliber:
9mm Luger
Barrel Length:
10.5 in
Barrel Profile:
M4
Barrel Twist Rate:
1-10
Barrel Material:
4150 Chrome Moly Vanadium
Flutes:
No
Gun Make:
AR Platform
Gun Model:
M4
Weight:
1.5 lb
Condition:
New
Gas Block Journal Size-Length:
1.2 in
Firearms Threads Per Inch:
1/2x28

Code: 3FY-ATB-962GA-BL-105-M4-9MM-10

MPN: BL-105-M4-9MM-10

UPC: 850039693137

List: $138.00Save 10%
$124.20

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Rosco Manufacturing Bloodline 9mm Barrel

This Rosco 9mm Barrel is the perfect addition for shooters that compete in the USPSAs PCC division, or are searching for a barrel which will offer astounding reliability and accuracy. Twist rates have also been taken into account in order to optimize performance for a multitude of rounds that you may also be running out of your competition/ duty/ concealed carry pistol in order to allow a cross platform ballistic familiarity. ALL NFA RULES APPLY!image

Their Rosco 9mm barrels are perfect for sub-caliber carbine platforms. We have taken the time to understand the purpose for these platforms and design a barrel which will support it effectively. It is our goal to get you the performance that you seek out of these barrels whether you are running suppressed, defense ammo, sub-sonic ammo or supersonic ammo (depending on barrel length). Twist rates, and lengths have all been taken into account when we set out to make these barrels.

Specifications for Rosco Manufacturing Bloodline 9mm Barrel:

Manufacturer: Rosco Manufacturing
Color: Black
Finish: Nitride
Fabric/Material: 4150 CMV Material
Caliber: 9mm Luger
Barrel Length: 10.5 in
Barrel Profile: M4
Barrel Twist Rate: 1-10
Barrel Material: 4150 Chrome Moly Vanadium
Flutes: No
Gun Make: AR Platform
Gun Model: M4
Weight: 1.5 lb
Condition: New
Gas Block Journal Size-Length: 1.2 in
Firearms Threads Per Inch: 1/2x28
Country of Origin: USA
Projectile Caliber: .355 Caliber
Gas System: Blowback

Features of Rosco Manufacturing Bloodline 9mm Barrel

  • Barrel Crown 11 Degree

Package Contents:

  • Rosco Manufacturing Bloodline 9mm Barrel

Rosco Manufacturing Bloodline 9mm Barrel Orderable Models

List of Orderable Models

  • Rosco Manufacturing Bloodline Barrel, 9mm, 10.5 inch, 1/10 Twist, 1/2 x 28 Thread, Black Nitride, BL-105-M4-9MM-10 , MPN: BL-105-M4-9MM-10 , UPC: 850039693137 , Code: 3FY-ATB-962GA-BL-105-M4-9MM-10

Rosco Manufacturing Bloodline 9mm Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • Rosco Manufacturing Bloodline 9mm Barrel, M4, 5.5in, 1-10 Twist, 1/2x28 Thread, Nitride, Black, BL-55-M4-9mm-10 , MPN: BL-55-M4-9MM-10 , UPC: 181969500142 , Code: 3FY-ATB-962GA-BL-55-M4-9MM-10
  • Rosco Manufacturing Bloodline 9mm Barrel, M4, 7.5in, 1-10 Twist, 1/2x28 Thread, Nitride, Black, BL-75-M4-9mm-10 , MPN: BL-75-M4-9MM-10 , UPC: 181969500159 , Code: 3FY-ATB-962GA-BL-75-M4-9MM-10
  • Rosco Manufacturing Bloodline 9mm Barrel, M4, 14.5in, 1-10 Twist, 1/2x28 Thread, Nitride, Black, BL-145-M4-9mm-10 , MPN: BL-145-M4-9MM-10 , UPC: 181969500166 , Code: 3FY-ATB-962GA-BL-145-M4-9MM-10
Compare (0)
Last updated 2026-07-20 UTC.