AT3 Tactical AR-15 Barrel – 10.5″ – 5.56 NATO – Government Profile – Carbine Length

10.5 Inch 5.56 NATO Barrel by AT3 Tactical

This 10.5 inch long 5.56 NATO barrel is a perfect match for a shorty AR-15 build that won’t break the bank. This barrel has a corrosion-resistant black nitride finish, with 4150 CMV steel construction for a long service life. The proven Government profile provides plenty of support for suppressors, which are a natural fit for an SBR in this caliber.

This barrel uses a .750″ diameter gas block, plus a Carbine length gas tube, both of which you can snag here at a lower, bundled cost. If you’re looking to start fresh with a complete upper assembly, check out our selection of upper and handguard combos! For this barrel, we’d recommend a handguard around 9 inches long to ensure you can access the muzzle threads. Which is ideal if you plan to suppress it!

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.

Specifications

• Length: 10.5 Inches
• Material: 4150 Chrome Moly Vanadium
• Profile: Government
• Finish: Black Nitride
• Gas System Length: Carbine
• Gas Block Journal: .750″
• Twist Rate: 1:7 inches
• Muzzle: 1/2×28 Threaded
• Barrel Extension: M4 Feed ramps
• Weight: 19 oz.

Where are these barrels made?

AT3 has partnered with Kinetic Manufacturing, a trusted OEM manufacturer for the firearm industry to produce these barrels. We have a philosophy that great parts for the AR don’t have to break the bank, and these barrels are no exception. Our lifetime warranty on these barrels applies to any defects due to workmanship. In the unlikely event you run into an issue, we will take care of you.