Our 5.56 chambered 16 inch M4 Profile Carbine Length Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

Additional Info
Length: 16"
Material: 4150 Chrome Moly Vanadium
Profile: M4
Finish: QPQ Corrosion Resistant
Gas System Length: Carbine
Gas Block Journal: .750"
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 28 oz

Our 5.56 chambered 16 inch Government Profile Mid-Length Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

Additional Info
Length: 16"
Material: 4150 Chrome Moly Vanadium
Profile: Government
Finish: QPQ Corrosion Resistant
Gas System Length: Mid-Length
Gas Block Journal: .750" Twist Rate 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 28 oz

This .300 Blackout chambered 8 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

All NFA/ATF Rules Apply
You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 8"
Material: 4150 Chrome Moly Vanadium
Profile: DRP
Finish: QPQ Corrosion Resistant
Gas System Length: Pistol
Gas Block Journal: .750"
Twist Rate: 1:7 inches
Muzzle 5/8x24 Threaded
Weight: 19oz

This 5.56 chambered 10.5 inch Government Profile Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

All NFA/ATF Rules Apply
You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 10.5"
Material: 4150 Chrome Moly Vanadium
Profile: Government
Finish: QPQ Corrosion Resistant
Gas System Length: Carbine
Gas Block Journal: .750"
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 19 oz

This .300 Blackout chambered 9 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

All NFA/ATF Rules Apply You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 9"
Materia: 4150 Chrome Moly Vanadium
Profile: DRP Finish QPQ Corrosion Resistant
Gas System Length: Pistol
Gas Block Journal: .750"
Twist Rate: 1:7 inches
Muzzle: 5/8x24 Threaded
Weight: 21oz

This 5.56 chambered 12.5 inch Government Profile Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

All NFA/ATF Rules Apply
You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 12.5"
Material: 4150 Chrome Moly Vanadium
Profile: Government
Finish: QPQ Corrosion Resistant
Gas System Length: Carbine
Gas Block Journal: .750"
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 22 oz

Our 5.56 chambered 14.5 inch Government Profile Mid-Length Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

All NFA/ATF Rules Apply

You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when permanently attaching a muzzle device extending the length to 16 inches.

Additional Info
Length: 14.5"
Material: 4150 Chrome Moly Vanadium
Profile: Government
Finish: QPQ Corrosion Resistant
Gas System Length: Mid-Length
Gas Block Journal: .750"
Twist: Rate 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 25 oz

11.5″ 5.56 mm Barrel

- Available in 11.5″
- 5.56 mm
- 4150 Chrome Molly Vanadium
- Threaded Barrel — Thread Pitch 1/2 x 28
- Gas Block Diameter .750
- Gas Tube Length — Carbine
- 1-9 RH Barrel Twist
- 6 Lands and Groves
- M4 Feed Ramp
- Government profile
- Button Broached

This 5.56 chambered 11.5 inch Government Profile Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

All NFA/ATF Rules Apply You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 11.5"
Material: 4150 Chrome Moly Vanadium
Profile: Government
Finish: QPQ Corrosion Resistant
Gas System Length: Carbine
Gas Block Journal: .750"
Twist: Rate 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 20.5oz

Our 5.56 chambered 14.5 inch M4 Profile Carbine Length Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

All NFA/ATF Rules Apply You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when permanently attaching a muzzle device extending the length to 16 inches.

Additional Info
Length: 14.5"
Material: 4150 Chrome Moly Vanadium
Profile: M4
Finish: QPQ Corrosion Resistant
Gas System Length: Carbine
Gas Block Journal: .750" Twist Rate 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 25oz

This 5.56 chambered 18 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

This barrel features a longer .750” profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.

Additional Info
Length: 18"
Material: 4150 Chrome Moly Vanadium
Profile: SPR
Finish: QPQ Corrosion Resistant
Gas System Length: Rifle
Gas Block Journal: .750"
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 41 oz

Our 5.56 chambered 16 inch M4 Carbine Length Classic Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a chrome lined bore and chamber with a manganese phosphate finish and phosphate coated M4 feed ramp extension.

Additional Info
Length: 16"
Material: 4150 Chrome Moly Vanadium
Profile: Government
Finish: Phosphate
Gas System Length: Carbine
Gas Block Journal: .750"
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 28 oz

This 5.56 chambered 10.3 inch Government Profile Classic Series Barrel is machined from 4150 Chrome Moly Vanadium steel with chrome lined bore and chamber with a manganese phosphate finish and phosphate coated M4 feed ramp extension.

Additional Info
Length: 10.3"
Material: 4150 Chrome Moly Vanadium
Profile: Government
Finish: Phosphate
Gas System Length: Carbine
Gas Block Journal: .750"
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 18 oz
Other Info: Crane Spec .070” Gas Port

This .223 Wylde chambered 16 inch barrel is machined from 416 Stainless Steel with a bead blasted finish. Our Premium Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

This barrel features a Mk12 Mod H profile with a longer .750” profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.

Additional Info
Length: 16"
Material: 416R Stainless Steel
Profile: Tactical Government
Finish: Bead Blasted
Gas System Length: Mid-Length
Gas Block Journal: .750"
Twist Rate: 1:8 inches
Muzzle: 1/2x28 Threaded
Weight: 32oz
Other Info: HP and MPI Tested

Our 5.56 chambered 14.5 inch M4 Carbine Length Classic Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a chrome lined bore and chamber with a manganese phosphate finish and phosphate coated M4 feed ramp extension.

Additional Info
Length: 14.5"
Material: 4150 Chrome Moly Vanadium
Profile: Government
Finish: Phosphate
Gas System Length: Carbine
Gas Block Journal: .750"
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 25 oz

This .223 Wylde chambered 16 inch barrel is machined from 416 Stainless Steel with a QPQ finish. Our Premium Black Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Additional Info
Length: 16"
Material: 416R Stainless Steel
Profile: SPR
Finish: QPQ Corrosion Resistant
Gas System Length: Mid-Length
Gas Block Journal: .750"
Twist Rate: 1:8 inches
Muzzle: 1/2x28 Threaded
Weight: 35oz
Other Info: HP and MPI Tested

This .300 Blackout chambered 8.3 inch barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our performance series barrels feature a Nickel Boron Coated M4 Feed Ramp Extension and are HP and MPI tested

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

All NFA/ATF Rules Apply
You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 8.3"
Material: 4150 Chrome Moly Vanadium
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Pistol
Gas Block Journal: 1.03″ Gas Block Seat for .750″ Low Profile Gas Blocks Only
Twist Rate: 1:7 inches
Muzzle: 5/8x24 Threaded
Weight: 19 oz

This .300 Blackout chambered 10.3 inch barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our performance series barrels feature a Nickel Boron Coated M4 Feed Ramp Extension and are HP and MPI tested

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

All NFA/ATF Rules Apply
You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 10.3"
Material: 4150 Chrome Moly Vanadium
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Pistol
Gas Block Journal: 1.03″ Gas Block Seat for .750″ Low Profile Gas Blocks Only
Twist Rate: 1:7 inches
Muzzle: 5/8x24 Threaded
Weight: 21 oz

This .223 Wylde chambered 18-inch barrel is machined from 416 Stainless Steel with a QPQ finish. Our Premium Black Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

This barrel features a longer .750” profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.

Additional Info
Length: 18"
Material: 416R Stainless Steel
Profile: SPR
Finish: QPQ Corrosion Resistant
Gas System Length: Rifle
Gas Block Journal: .750"
Twist Rate: 1:8 inches
Muzzle: 1/2x28 Threaded
Weight: 41oz
Other Info: HP and MPI Tested

This .223 Wylde chambered 16 inch barrel is machined from 416R Stainless Steel with a bead blasted finish. Our Premium Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

Additional Info
Length: 16"
Material: 416R Stainless Steel
Profile: Hanson
Finish: Bead Blasted
Gas System Length: Mid-Length
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:8 inches
Muzzle: 1/2x28 Threaded
Weight: 27
Other Info: HP and MPI Tested

This 5.56 chambered 16 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our Performance Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

Additional Info
Length: 16"
Material: 4150 Chrome Moly Vanadium
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Mid-Length
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 27oz
Other Info: HP and MPI Tested

This 5.56 chambered 16 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our Performance Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

“The original BA Hanson profile barrels have a .750” diameter at the gas block journal and it is more of a light/medium contour. The BA Hanson .625” barrels are called this due to .625″ diameter at the gas block journal. This profile is a thinner and lighter weight version of the original BA Hanson profile. Each BA Hanson barrel comes with a pinned, lo-pro Gas Block already installed which makes them an excellent value.”

Additional Info
Length: 16"
Material: 4150 Chrome Moly Vanadium
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Mid-Length
Gas Block Journal: 1.00" Gas Block Seat for .625" Low Profile Gas Blocks Only
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 22 Oz
Other Info: HP and MPI Tested

This .223 Wylde chambered 16-inch barrel is machined from 416R Stainless Steel with a bead blasted finish. Our Premium Black Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

Additional Info
Length: 16"
Material: 416R Stainless Steel
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Mid-Length
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:8 inches
Muzzle: 1/2x28 Threaded
Weight: 27 oz.
Other Info: HP and MPI Tested

This 5.56 chambered 10.3 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our performance series barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension. Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits. All NFA/ATF Rules Apply You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 10.3"
Material: 4150 Chrome Moly Vanadium
Profile: Hanson Finish QPQ Corrosion Resistant
Gas System Length: Carbine
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 20oz

This .223 Wylde chambered 14.5-inch barrel is machined from 416 Stainless Steel with a QPQ finish. Our Premium Black Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

All NFA/ATF Rules Apply You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when permanently attaching a muzzle device extending the length to 16 inches.

Additional Info
Length: 14.5"
Material: 416R Stainless Steel
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Mid-Length
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:8 inches
Muzzle: 1/2x28 Threaded
Weight: 26oz (includes Low Pro)
Other Info: HP and MPI Tested

This 5.56 chambered 14.5 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our Performance Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

All NFA/ATF Rules Apply You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 14.5"
Material: 4150 Chrome Moly Vanadium
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Mid-Length
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:7 inches
Muzzle" 1/2x28 Threaded
Weight 26oz (includes Low Pro)

This 5.56 chambered 11.3 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our performance series barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

Additional Info
Length: 11.3"
Material: 4150 Chrome Moly Vanadium
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Carbine
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 21oz

This 5.56 chambered 12.3 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our performance series barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

Additional Info
Length: 12.3"
Material: 4150 Chrome Moly Vanadium
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Carbine
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 22oz

This 5.56 chambered 13.7 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our Performance Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

All NFA/ATF Rules Apply You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

Additional Info
Length: 13.7"
Material: 4150 Chrome Moly Vanadium
Profile: Hanson
Finish: QPQ Corrosion Resistant
Gas System Length: Carbine
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:7 inches
Muzzle: 1/2x28 Threaded
Weight: 25oz (includes Low Pro)
Other Info: HP and MPI Tested

This .223 Wylde chambered 18 inch barrel is machined from 416 Stainless Steel with a bead blasted finish. Our Premium Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

Additional Info
Length: 18"
Material: 416R Stainless Steel
Profile: Hanson
Finish: Bead Blasted
Gas System Length: Mid-Length
Gas Block Journal: 1.03" Gas Block Seat for .750" Low Profile Gas Blocks Only
Twist Rate: 1:8 inches
Muzzle: 1/2x28 Threaded
Weight: 40 oz
Other Info: HP and MPI Tested