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, 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).

Barrel Length: 12.5″    
Barrel Weight: 21.79oz    
Barrel Material: 4150 CMV    
Barrel Caliber: 5.56    
Barrel Profile: Government
Twist: 1/7
Barrel Thread: 1/2 x 28
Gas Block Size: .750    
Gas System Length: Carbine Length    
Barrel Crown:11 Degree   
Barrel Finish: Nitride 
Barrel Extension Finish: Nitride