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Rosco Manufacturing
Overview
The Rosco Manufacturing Bloodline 5.56 AR-15 Barrel is a 14.5-inch M4 profile barrel designed for use with a carbine-length gas system. With a twist rate of 1:7, it effectively stabilizes a wide range of bullet weights, making it versatile for different ammunition choices. This barrel is commonly found in builds that emphasize a compact design while maintaining the reliability and performance expected from a 5.56 NATO caliber setup.
Based on build data

Wilson Combat Ar-15 Billet Upper Receiver

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

Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers

Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black

Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom

Yankee Hill Machine Co., Inc. Ar-15 Gas Tube Black Carbine
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Wilson Combat Ar-15 Billet Upper Receiver | 49 | |
| Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4 | 45 | |
| Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers | 36 | |
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | 31 | |
| Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom | 23 | |
| Yankee Hill Machine Co., Inc. Ar-15 Gas Tube Black Carbine | 23 |
| Platform | Percentage |
|---|---|
| AR-15 | 80.4% |
| AR-10 | 19.6% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Carbine | 100% |
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