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This 12.5” Rosco barrel is designed to bridge the gap between SBR-Pistol and/ or RECCE platforms and delivers amazing precision performance for its compact size. It is the perfect addition for the person attempting to create the ultimate intermediate patrol platform.


"Our Rosco 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 we have incorporated your needs into our engineering. We have successfully accomplished this by picking the right twist rates, gas port diameters, and barrel materials according to the barrel we are making (not a lazy blanket method). We have also balanced input from our consumers and military end users in order to bring you the product you need, not just the one we want to sell you."


CT "Other" compatible.

Rosco Manufacturing American Flag Bloodline 12.5” 5.56 NATO

Out of Stock
  • Barrel Length 12.5″  
    Barrel Weight 21.79oz  
    Barrel Material 4150 CMV  
    Barrel Caliber 5.56  
    Barrel Profile





    Barrel Thread

    1/2 x 28  

    Gas Block Size


    Gas System Length

    Carbine Length  
    Barrel Crown

    11 Degree

    Barrel Finish


    Barrel Extension Finish


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