Rosco 16″ M4 5.56 NATO Carbine Length Bloodline Barrel


This Rosco 16″ M4 5.56 NATO Bloodline Barrel is the perfect addition to your next build featuring perfect balance, properly sized gas ports in order to optimize performance and reduce premature wear and tear from over gassed barrels.

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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.

Barrel Length 16″
 Barrel Weight 28.97 oz
 Barrel Material 4150 CMV
Barrel Caliber 5.56
Barrel Profile M4
Twist  1/7
Barrel Thread 1/2 x 28
Barrel Gas Block Size  0.750
Gas System Length Carbine
Barrel Crown 11 Degree
Barrel Finish Nitride
Barrel Extension Finish Nitride
Weight 2.0lbs
Dimensions 19.5 x 2.3 x 2.2in

Additional information

Weight 2.3 lbs
Dimensions 20 × 3 × 3 in


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