Rosco Bloodline 12.5in 5.56 NATO 4150 CMV Nitride AR-15 Barrel BL-125-M4-556-7-C

by Rosco Manufacturing

Rosco Bloodline 12.5in 5.56 NATO 4150 CMV Nitride AR-15 Barrel BL-125-M4-556-7-C

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Retail: $159.25

Rosco Manufacturing Bloodline 12.5" 5.56 NATO AR-15 Barrel (BL-125-M4-556-7-C)

The Rosco Manufacturing Bloodline 12.5" 5.56 NATO barrel is built to bridge the gap between SBR/pistol and RECCE platforms, delivering precision performance in a compact configuration.

Product Highlights

  • Premium 4150 CMV Steel: Machined from 4150 Chrome Moly Vanadium steel for strength, reliability, and longevity.
  • Full Nitride Treatment: Nitride finish on both the barrel and barrel extension for improved wear resistance and corrosion protection.
  • Government Profile + Carbine Length Gas System: Tuned for a compact 12.5" build and reliable cycling.
  • 1:7 Twist Rate: Stabilizes a broad range of 5.56 NATO projectile weights.
  • 1/2x28 Threaded Muzzle w/ 11-Degree Crown: Compatible with standard AR-15 muzzle devices; the 11-degree crown supports consistent accuracy.

Specs

  • Brand: Rosco Manufacturing
  • MPN: BL-125-M4-556-7-C
  • UPC: 181969500036
  • Caliber: 5.56 NATO
  • Barrel Length: 12.5 in
  • Barrel Weight: 21.79 oz
  • Barrel Material: 4150 CMV
  • Barrel Profile: Government
  • Twist Rate: 1:7
  • Thread Pattern: 1/2 x 28
  • Gas Block Size: .750 in
  • Gas System Length: Carbine Length
  • Barrel Crown: 11 Degree
  • Barrel Finish: Nitride
  • Barrel Extension Finish: Nitride
  • Compatible Platform: AR-15

Specifications

Manufacturer:
Rosco Manufacturing
Category:
barrel
Platforms:
AR-15
Interfaces:
Muzzle thread: 1/2-28
Weight:
21.79 oz (1.36 lbs)
Length:
12.5"
Estimated velocity:
2,450-2,825 fps

Estimate only. Based on caliber + barrel length bucket. View details

UPC:
8258532900986
MPN:
BL-125-M4-556-7-C
Required Component:
Yes

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Where to Buy

TLO Outdoors
In Stock
$157.98

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