Home > AR10 Parts > 7.62 / .308 Barrels

AR 7.62 / .308 Barrels, Blocks & Tubes


Precise, safe and expert use of a firearm often depends on the accessories you choose for your weapon. Chief among priorities is the barrel, which can make or break your performance. That’s why we’ve hand-selected only the highest-quality AR 7.62 & AR .308 barrels, built to last by manufacturers you know and trust. When you want to improve accuracy and range, try one of our AR10 7.62 barrels. These DPMS pattern barrels feature dimensions like 18-inch lengths and 5/8 by 24 threaded muzzles. At 3.26 pounds with a medium profile build, the barrels are light weight and sleek.


Also 18 inches in length, the AR .308 barrels made by Ballistic Advantages feature a 1-10 twist rate and high-quality 4150 chrome moly vanadium steel machining. These barrels resist corrosion and come with a QPQ M4 feed ramp extension. They weigh 3.26 pounds and feature a heavy profile design.


Along with barrels, you may also consider using AR gas blocks and AR gas tubes. Our gas blocks are made from exceptional materials and are designed for easy use with your AR-15m rifle. The gas tubes, likewise, are 16 inches in length and are made from durable carbine. If you’re unsure of which style of 7.62/.308 barrel meets your specific needs, just contact us and one of our firearms experts will assist you!

Sort By:
1
308 / 7.62 Flash Hider 5/8-24 with crush washer

AR10 / DPMS LR308 Flash hider.

Standard, A2-style “birdcage” flash suppressor. Solid bottom helps reduce dust signature. Steel, black finish, fits barrels with 5/8"-24 tpi threads.

*Works on 300 Blackout Barrel that are 5/8-24 as well

Our Price: $14.99
PMA Low Profile Steel Nitrided Gas Block .750

The PMA Low Profile Steel gas block for AR-15 pattern rifles is precision machined from 4340 steel and Salt Bath Nitrided (Melonite). This treatment provides a harder-than-chrome surface with excellent lubricity and extreme corrosion reisistance. Matched with a slim, sculpted design, this gas block is perfect for mounting beneath a free-float rail system. These come with 2 mounting screws and stainless steel gas block roll pin.

  • 4340 Steel
  • Salt Bath Nitride
  • CNC Machined
  • Stainless Steel roll pin
  • Steel Mounting Screws
  • Fits .750 diameter barrels
    .

Our Price: $29.99
PMA Low Profile Steel Gas Block .750 with Tube installed

The PMA Low Profile Steel gas block is the finest in quality and style for your AR-15 pattern rifle. They are precision machined from 4340 steel and Salt Bath Nitrided (Melonite). This treatment provides a harder-than-chrome surface with excellent lubricity and extreme corrosion reisistance. Matched with a slim, sculpted design, this gas block is perfect for mounting beneath a free-float rail system. These come with 2 mounting screws and the Carbine length gas tube installed with a stainless steel roll pin.

  • 4340 Steel
  • Salt Bath Nitride
  • CNC Machined
  • Stainless Steel roll pin
  • Steel Mounting Screws
  • Fits .750 diameter barrels
  • Carbine Length Gas Tube Installed
    .

Our Price: $39.99

(2)
PMA Low Profile Aluminum Gas Block .750 with Tube installed

The PMA Low Profile Aluminum gas block is the finest in quality and style for your AR-15 pattern rifle. They are precision machined from 7075 and anodized. This treatment provides corrosion resistance and clean sleek finish. Matched with a slim, sculpted design, this gas block is perfect for mounting beneath a free-float rail system. These come with 2 mounting screws and gas tube length of your choice installed with a stainless steel roll pin.

  • 4340 Steel
  • Annodized
  • CNC Machined
  • Stainless Steel roll pin
  • Steel Mounting Screws
  • Fits .750 diameter barrels
  • Gas Tube Installed
    .

Our Price: $39.99

(1)
PMA Low Profile Gas Block .750 With Tube Installed

Pickett's Mill Armory Low profile Aluminum gas block with your choice of gas tube length installed. Our CNC machined gas blocks set the industry standard for high quality parts. Each one is test fit on rifle barrel prior to packaging to ensure the perfect fit.

  • .750 Aluminum Gas Block Anodized
  • 7075 Aluminum
  • 2 Set screws
  • Stainless Steel roll pin
  • Allen wrench for tightening
  • Choice of Pistol, Carbine, Mid Length or Rifle Gas tube.

Our Price: $52.99
18" 7.62x51 PMA Chromoly Barrel 18" PICKETT'S MILL ARMORY 7.62x51 Barrel

Pickett's Mill Armory continues to deliver high quality at an affordable price. This barrel is chambered in 7.62x51 with an 18 inch Medium Profile Barrel and is machined from 4150 Chrome Moly Gun steel with Manganese Phosphate finish and M4 feed ramps on the extension.

  • 18" Length
  • 4150 Chrome Moly
  • Medium Profile
  • Manganese Phosphate
  • Mid Length Gas System
  • .750 Block Journal
  • 1-10 Twist Rate
  • 5/8x24 Threaded Muzzle
  • 52.5oz (3.26lbs)


Our Price: $169.99
Ballistic Advantage .308 Barrel 18" Ballistic Advantage 308 Barrel QPQ Finish BABL308007M

Gun enthusiasts and dealers shopping for an AR barrel that offers second-to-none performance and unmatched quality will love this 18-inch .308 barrel from Ballistic Advantage. Precision machined from 4150 Chrome-Moly vanadium steel, this is a heavy profile barrel designed for both custom builds and upgrades of current rifles. The barrel weighs 52.5 ounces and features a rifle-length gas system and 1:10 right-hand twist.


This modern series Ballistic Advantage AR barrel also boasts a QPQ corrosion-resistant finish and QPQ-coated M4 feed ramp extension for overall performance. This is a great choice whether you're shopping for your first AR .308 chambered barrel or your fiftieth. Now owned by Aero Precision, Ballistic Advantage is known for making high-quality AR parts and supplies. Of course, the friendly staff at Pickett's Mill Armory is here to answer your questions about compatibility of this barrel with other AR components. Order yours today or contact us if you need help!


Features:

  • 18" Length
  • 4150 Chrome Moly Vanadium
  • Heavy Profile
  • QPQ Corrosion Resistant Finish (Melonite)
  • Rifle Length Gas System
  • .750 Block Journal
  • 1-10 Twist Rate
  • 5/8x24 Threaded Muzzle
  • 52.5oz (3.26lbs)

Ballistic Advantage is now owned by Aero Precision so the quality of the products will be second to none!


Our Price: $219.99

(1)
Ballistic Advantage .308 Barrel 18" Pickett's Mill Armory 308 Barrel QPQ Finish 1-10 Twist

Pickett's Mill Armory once again hits it out of the park with this .308 chambered 18 inch Heavy 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.

  • 18" Length
  • 4150 Chrome Moly Vanadium
  • Heavy Profile
  • QPQ Corrosion Resistant Finish (Melonite)
  • Rifle Length Gas System
  • .750 Block Journal
  • 1-10 Twist Rate
  • 5/8x24 Threaded Muzzle
  • 52.5oz (3.26lbs)


Our Price: $219.99
16" FN .308 CHF CL BARREL 1-12

Shopping for a barrel for your AR10 rifle is no small matter. You want to be sure to consider all the pros and cons and know what you’re buying is made with the highest quality. That’s why investing in PMA’s cold hammer forged barrels is a purchase that will increase the value and durability of your AR10.


Our FN .308 barrels are hammer forged using the same proprietary high-grade Chrome Moly Venadium steel used in FN’s venerable machine gun barrels, which are produced to handle the punishment of sustained fully automatic fire. After forging, each barrel is Magnetic Particle tested to ensure it is free of micro-stresses and flaws. This guarantees consistency and quality in every barrel shipped from the factory.


The bore and chamber of this AR10 .308 barrel for sale is chrome lined to help resist corrosion and provide resistance to heat erosion, which greatly improves barrel life and reliable chambering/extraction. The M4 style feed ramps and barrel extension provide consistent feeding, and the matte black Manganese Phosphate finish resists external corrosion and oxidation.


This barrel is currently available in a chambering of 7.62x51 NATO with a 1-12 Twist. Order your CL barrel today, or feel free to reach out to our veteran firearms experts with any questions you may have!

Our Price: $379.99
   
 
1