AR Parts
Rosco Manufacturing 12.5″ Sage Dynamics 5.56 K9 Barrel (1/7 Twist)
Out of stock
$153.00The K9 12.5 offers a proprietary patrol length gas system that is smoother than carbine length, and more reliable than mid-length.
Note: Comes with patrol length gas tube.
- Barrel Length: 12.5″
- Barrel Weight: 27.05 oz
- Barrel Material:l 416R
- Barrel Caliber: 5.56
- Barrel Profile: Continuous
- Twist: 1/7
- Barrel Thread: 1/2 x 28
- Barrel Gas Block Size: 0.750
- Gas System Length: Patrol
- Barrel Crown: 11 Degree
- Barrel Finish: Nitride
- Barrel Extension Finish: Nitride
Rosco Manufacturing Bloodline 10.5″ 300 Blackout Barrel (1/7 Twist)
Out of stock
$146.00This Rosco 10.5” 300 Blackout (300 BLK) barrel was designed for SBR and Pistol use in conjunction with suppressors.
- Barrel Length 10.5″
- Barrel Weight 21.4 oz
- Barrel Material 4150 CMV
- Barrel Caliber 300 BLK
- Barrel Profile: Heavy
- Twist: 1/7
- Barrel Thread: 5/8 x 24
- Gas Block Size: .750
- Gas System Length: Pistol
- Barrel Crown: 11 Degree
- Barrel Finish: Nitride
- Barrel Extension Finish: Nitride
Rosco Manufacturing Bloodline 8.2″ 300 Blackout Barrel (1/7 Twist)
Out of stock
$130.50This Rosco 8.2” 300 Blackout Bloodline Barrel was designed for SBR and Pistol use in conjunction with suppressors.
- Barrel Length: 8.2″
- Barrel Weight: 17.73 oz
- Barrel Material: 4150 CMV
- Barrel Caliber: 300 BLK
- Barrel Profile: Heavy
- Twist: 1/7
- Barrel Thread: 5/8 x 24
- Gas Block Size: .750
- Gas System Length: Pistol
- Barrel Crown: 11 Degree
- Barrel Finish: Nitride
- Barrel Extension Finish: Nitride
Rosco Manufacturing 13.7″ .223 Wylde Purebred Barrel (1/8 Twist)
Out of stock
$150.00This 13.7” Rosco barrel is the perfect option for an evenly capable SBR/ RECCE build. It is designed to give the shooter maneuverability at close quarters yet allow them to get first-round impact hits as far as 300 yards. The gas system has been designed to give the platform a non-turbulent operation while not sacrificing proper dwell times. This barrel is perfectly suited for your next expeditionary/ entry rifle build. ALL NFA RULES APPLY!
- Barrel Length: 13.7″
- Barrel Weight: 23.6oz
- Barrel Material: 416 R
- Barrel Caliber: .223 Wylde
- Barrel Profile: Govt
- Twist: 1/8
- Barrel Thread: 1/2 x 28
- Barrel Gas Block Size: 0.750
- Gas System Length: Midlength
- Barrel Crown: Step Crown
- Barrel Finish: 80 Grit Bead Blast
- Barrel Extension Finish: Nickel Boron
Rosco Manufacturing 12.5″ M4 5.56 NATO Bloodline Barrel (1/7 Twist)
Out of stock
$126.00This 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.
- Barrel Length: 12.5″
- Weight: 21.79oz
- Material: 4150 CMV
- Caliber: 5.56
- Profile: Government
- Twist: 1/7
- Thread: 1/2 x 28
- Gas Block Size: .750
- Gas System Length: Carbine Length Barrel
- Crown: 11 Degree
- Finish: Nitride
- Extension Finish: Nitride
Rosco Manufacturing 20″ .223 Wylde Purebred Barrel (1/7 Twist)
Out of stock
$179.65This Rosco 20″ .223 Wylde Barrel was made to give the precision carbine shooter the best possible option for extended range shooting within this chambering option.
- Barrel Length 20.0″
- Barrel Weight: 32.3oz
- Barrel Material: 416 R
- Barrel Caliber: .223 Wylde
- Barrel Profile: Medium
- Twist: 1/7
- Barrel Thread: 1/2 x 28
- Barrel Gas Block Size: 0.750
- Gas System Length: Rifle
- Barrel Crown: Step Crown
- Barrel Finish: 80 Grit Bead Blast
- Barrel Extension Finish: Nickel Boron
Rosco Manufacturing 16″ .223 Wylde Purebred Barrel (1/8 Twist)
In stock
$198.90This Rosco 16″ .223 Wylde Barrel is the perfect addition to your next DMR (or SPR) build featuring great balance, and properly sized gas ports in order to optimize performance while reduce premature wear and tear (from over gassing). This barrel is perfectly suited for SPR rifles which will have a suppressor most of the time. The overall size of the platform will be comfortable for the shooter to haul around without sacrificing accuracy.
- Barrel Length: 16.0″
- Barrel Weight: 27.82 oz
- Barrel Material: 416 R
- Barrel Caliber: .223 Wylde
- Barrel Profile: Govt
- Twist: 1/8
- Barrel Thread: 1/2 x 28
- Barrel Gas Block Size: 0.750
- Gas System Length:Midlength
- Barrel Crown: Step Crown
- Barrel Finish: 80 Grit Bead Blast
- Barrel Extension Finish: Nickel Boron
Rosco Manufacturing 11.5″ M4 5.56 NATO Bloodline Barrel (1/7 Twist)
Out of stock
$115.99This Rosco 11.5″ M4 5.56 NATO Bloodline Barrel is designed to be the perfect addition to any SBR or Pistol build.
- 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.
- Barrel Crown: 11 Degree.
- Barrel Finish: Nitride.
- Barrel Extension Finish: Nitride.
Rosco Manufacturing 10.5″ M4 5.56 NATO Bloodline Barrel (1/7 Twist)
In stock
$122.50Bloodline 10.5″ M4 5.56 NATO: This Rosco 10.5″ M4 5.56 NATO Bloodline Barrel is designed to be the perfect addition to any SBR or Pistol build.
- Barrel Length: 10.5″
- Barrel Weight: 19.28 Oz
- Barrel Material: 4150 CMV
- Barrel Caliber: 5.56
- Barrel Profile: M4
- Twist: 1/7
- Barrel Thread: 1/2 x 28
- Gas Block Size: 0.750
- Gas System Length: Carbine
- Barrel Crown: 11 Degree
- Barrel Finish: Nitride
- Barrel Extension Finish: Nitride
Rosco Manufacturing 18″ .223 Wylde Purebred Barrel (1/7 Twist)
Out of stock
$168.18This Rosco 18″ .223 Wylde Barrel was made to enhance the performance of the original MK12 SPR. The medium contour is well suited for cold bore shots on target as well as keeping the weight at a great balance. Gas ports were sized according to the most popular precision bullet weights and suppressor use.
- Barrel Length: 18.0″
- Barrel Weight: 30.15 oz
- Barrel Material: 416 R
- Barrel Caliber: .223 Wylde
- Barrel Profile: Medium
- Twist: 1/7
- Barrel Thread: 1/2 x 28
- Barrel Gas Block Size: 0.750
- Gas System Length: Rifle
- Barrel Crown: Step Crown
- Barrel Finish: 80 Grit Bead Blast
- Barrel Extension Finish: Nickel Boron
Rosco Manufacturing 14.5″ .223 Wylde Purebred Barrel (1/8 Twist)
In stock
$122.01This Rosco 14.5″ .223 Wylde Barrel was built around the M4/DMR platform and is designed to be a precision solution for shooters who require a smaller carbine that will meet multiple criteria.
- Barrel Length: 14.5″
- Barrel Weight: 25.25 oz
- Barrel Material: 416 R
- Barrel Caliber: .223 Wylde
- Barrel Profile: Govt
- Twist: 1/8
- Barrel Thread: 1/2 x 28
- Barrel Gas Block Size: 0.750
- Gas System Length: Midlength
- Barrel Crown: Step Crown
- Barrel Finish: 80 Grit Bead Blast
- Barrel Extension Finish: Nickel Boron
Rosco Manufacturing 10.5″ 300 Blackout Purebred Barrel (1/7 Twist)
Out of stock
$180.00This Rosco Purebred 10.5″ 300 Blackout Barrel was designed for SBR/ Pistol use in conjunction with suppressors. The 10.5” Rosco barrel was made to be a direct precision replacement for any MK 18 platforms that are currently in 5.56 NATO. The 10.5” barrel is also perfect for carbines which require a slightly longer rail in order to run PEQ-15’s, D-BAL (series), or any laser aiming devices comfortably. ALL NFA RULES APPLY!
Rosco Manufacturing 8.2″ 300 Blackout Purebred Barrel (1/7 Twist)
Out of stock
$141.41This Rosco Purebred 8.2″ 300 Blackout Barrel was designed for SBR/ Pistol use in conjunction with suppressors.
- Barrel Length: 8.2″
- Barrel Weight: 17.49 oz
- Barrel Material: 416 R
- Barrel Caliber: 300 BLK
- Barrel Profile: Heavy
- Twist: 1/7
- Barrel Thread: 5/8 x 24
- Barrel Gas Block Size: 0.750
- Gas System Length: Pistol
- Barrel Crown: Step Crown
- Barrel Finish: 80 Grit Bead Blast
- Barrel Extension Finish: Nickel Boron
Rosco Manufacturing 16″ M4 5.56 NATO Bloodline Barrel (1/7 Twist)
In stock
$152.10This 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.
- 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.
- Gas Block Size: .750
- Gas System Length: Carbine.
- Barrel Crown: 11 Degree.
- Barrel Finish: Nitride.
- Barrel Extension Finish: Nitride.
Rosco Manufacturing 16″ Slimline 5.56 NATO Bloodline Barrel (1/7 Twist)
Out of stock
$157.50This Rosco 16” 5.56 NATO “Slimline” barrel is the lightest 16″ 5.56 NATO barrel in the market without sacrificing reliability and performance. The requirements for light weight carbines has prompted us to create a barrel that will provide the end user with significant weight savings.
- Barrel Length: 16″
- Barrel Weight: N/A
- Barrel Material: 4150 CMV
- Barrel Caliber: 5.56
- Barrel Profile: Slim
- Twist: 1/7
- Barrel Thread: 1/2 x 28
- Gas Block Size: .750
- Gas System Length: Carbine
- Barrel Crown: 11 Degree
- Barrel Finish: Nitride
- Barrel Extension Finish: Nitride
Rosco Manufacturing 16″ 300 Blackout Bloodline Barrel (1/8 Twist)
In stock
$178.20This Rosco 16” 300 Blackout barrel is perfectly suited for carbines shooters that plan on running only supersonic ammo, or are building a well-balanced hunting platform.
- Barrel Length: 16″
- Barrel Weight: 30.01 Oz
- Barrel Material: 4150 CMV
- Barrel Caliber: 300 BLK
- Barrel Profile: Heavy
- Twist: 1/8
- Barrel Thread: 5/8 x 24
- Gas Block Size: .750
- Gas System Length: Pistol
- Barrel Crown: 11 Degree
- Barrel Finish: Nitride
- Barrel Extension Finish: Nitride
Rosco Manufacturing 14.5″ M4 5.56 NATO Bloodline Barrel (1/7 Twist)
In stock
$103.31This Rosco 14.5″ M4 5.56 NATO Bloodline Barrel was built around the M4 platform and is designed to be the next evolutionary step in the series.
- Barrel Length: 14.5″
- Barrel Weight: 26.34 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
- Barrel Crown: 11 Degree
- Barrel Finish: Nitride
- Barrel Extension Finish: Nitride
Rosco Manufacturing 7.5″ 9mm Bloodline Barrel (1/10 Twist)
Out of stock
$103.50This Rosco 7.5″ 9mm Barrel was designed for Personal Defense Weapon (PDW) builds where the end user might run suppressed occasionally and have the need for extended accuracy at distance out of a compact platform.
- Barrel Length: 7.5″
- Barrel Weight: 11.1 oz
- Barrel Material: 4150 CMV
- Barrel Caliber: 9 mm
- Barrel Profile: Medium
- Twist: 1/10
- Barrel Thread: 1/2 x 28
- Gas Block Size: N/A
- Gas System Length: N/A
- Barrel Crown: 11 Degree
- Barrel Finish: Nitride
- Barrel Extension Finish: Nitride