Rosco 5.56 16″ Government Midlength Barrel

16″ M4 5.56 NATO Mid-Length Bloodline Barrel (Mid-Length): This 16″ M4 5.56 NATO Mid-Length barrel was designed around the USASOC specs for an Improved Upper Receiver Group with a little bit of the Rosco touch as well. The longer gas system allows for a smoother gas curve which leads to managed dwell times. This combo creates a great balance of speed and performance. 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.


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SKU: 24766 Categories: ,
*Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors. Stock photos provided to us by the manufacturer do not necessarily represent the actual item being purchased. Please refer to the title and description of the item before you place your order.

Rosco 5.56 16″ Government Midlength Barrel

  • Barrel Caliber: 5.56
  • Barrel Crown: 11 Degree
  • Barrel Extension Finish: Nitride
  • Barrel Finish: Nitride
  • Barrel Length: 16″
  • Barrel Material: 4150 CMV
  • Barrel Profile: M4
  • Barrel Thread: 1/2 x 28
  • Barrel Weight: 28.97 oz
  • Gas Block Size: .750
  • Gas System Length: Mid-Length
  • Twist: 1:7
  • Weight: 2.0 lbs
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