Rosco ManufacturingAll Rosco Manufacturing barrels

Rosco Manufacturing Bloodline 9mm AR-15 Barrel Medium Weight - 14.5"

Rosco Manufacturing Bloodline 9mm Ar-15 Barrel Medium Weight - 14.5" - Barrel for AR-15 - view 1
Rosco Manufacturing Bloodline 9mm Ar-15 Barrel Medium Weight - 14.5" - Barrel for AR-15 - view 2
Rosco Manufacturing Bloodline 9mm Ar-15 Barrel Medium Weight - 14.5" - Barrel for AR-15 - view 3
Buy Now

Rosco Manufacturing

Overview

The Rosco Manufacturing Bloodline 9mm AR-15 Barrel is a 14.5-inch medium-weight barrel designed specifically for blowback systems, making it an ideal choice for 9mm builds. With a 1:10 twist rate, it offers a balance between stability and accuracy, providing reliable performance for a variety of ammunition types. This barrel is commonly found in builds that prioritize a compact and lightweight setup, perfect for both tactical applications and recreational shooting.

Specifications

MPNBL-145-M4-9MM-10
Caliber9mm
Gas System LengthBlowback
Thread Pitch1/2x28
CoatingQPQ/Nitride
Barrel Length14.5
Twist Rate1:10
Barrel ProfileMedium

Available Merchants(2)

Prices checked

Stock Alert

Log in to get notified when this product is back in stock.

BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
Out of Stock
$132
Buy Now
KY Gun Company logo
KY Gun Company
Flat rate shipping
Shipping Speed
Out of Stock
$149
Buy Now

Build history on GunPartPicker

Builders on GunPartPicker first added the Rosco Manufacturing Bloodline 9mm AR-15 Barrel Medium Weight - 14.5" to a build in February 2026.

It was out of stock everywhere we track for all of August 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $131.50 at BattleHawk Armory for when it comes back.

Trending barrels →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers

Not sure which barrel to pick?

We ranked every barrel by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Barrel Length & Brand Report →

Check it against the live catalog:

Frequently Built With

Popular alongside barrels on GunPartPicker

Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4

Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4

Upper Receiver$129 · out of stockin 867 builds
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Lower Receiver$155 · out of stockin 304 builds
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers

Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers

Charging Handle$85 · out of stockin 480 builds
Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15

Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15

Handguard$42in 279 builds
Bravo Company M16 Bolt Carrier Group Black

Bravo Company M16 Bolt Carrier Group Black

Bolt Carrier Group$199in 653 builds
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Trigger$335in 443 builds

Builds Featuring This Part

See all 1 →

Builds in the community that include the Rosco Manufacturing Bloodline 9mm Ar-15 Barrel Medium Weight - 14.5"

BuildPartsTotal
Carbine 14.5" 9mm build
Carbine 14.5" 9mm		14$1680.07

Review this product

Share your thoughts with other customers

Be the first to review

No reviews yet. Be the first to review this product!