Rosco Bl Bbl 11.5″ 5.56 1/7


444 in stock

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SKU: RSRROSBL-115-M4-556-7-C Categories: , , Product ID: 1720562

Product Description for Rosco Bl Bbl 11.5″ 5.56 1/7

Bloodline 11.5″ M4 5.56 NATO: This Rosco 11.5″ M4 5.56 NATO Bloodline Barrel is designed to be the perfect addition to any SBR or Pistol build. ALL NFA RULES APPLY! Rosco 5.56 (NATO) barrels are designed to meet the modern day carbine shooters requirements. Rosco is a long way from our daddys ,Sporter, AR, and those specs just wont cut it anymore. From properly managed dwell times for SBRs, to running Suppressoressed, or setting up a balanced patrol carbine Rosco has incorporated your needs into Rosco engineering. Rosco has successfully accomplished this by picking the right twist rates, gas port diameters, and barrel materials according to the barrel being made.

Features :

  • Barrel Length: 11.5″
  • Barrel Weight: 20.82 Oz
  • Barrel Material: 4150 CMV
  • Barrel Caliber: 5.56
  • Barrel Profile: M4
  • Twist: 1/7
  • Barrel Thread: 1/2 x 28
  • Gas Block Size: .750
  • Gas System Length: Carbine


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Additional Information for Rosco Bl Bbl 11.5″ 5.56 1/7

Weight 2.0600 lbs
Dimensions 19.5000 × 3.0000 × 2.2500 in

5.56mm NATO

type of barrel



Black Nitride

barrel length