16 Inch Pencil 5.56 NATO Barrel by AT3 Tactical
Upgrade your AR-15 with a 16 inch pencil barrel to improve your handling and save on weight. While the pencil profile trims the fat up front for better balance, this barrel still uses 4150 CMV steel for longevity, and a black nitride finish for corrosion resistance. This barrel uses a midlength gas system, which is smoother than M4 style rifles, which makes it even more comfortable.
This barrel uses a .625″ diameter gas block, plus a Midlength 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 12 to 15 inches long to ensure shooter comfort, plus room for accessories.
Specifications
- Length: 16 Inches
- Material: 4150 Chrome Moly Vanadium
- Profile: Pencil
- Finish: Black Nitride
- Gas System Length: Midlength
- Gas Block Journal: .625″
- Twist Rate: 1:7 inches
- Muzzle: 1/2×28 Threaded
- Barrel Extension: M4 Feed ramps
- Weight: 23 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.
Specifications:
| Caliber | 5.56 NATO/.223 Remington |
| Barrel Length | 16 inches |
| Barrel Twist Rate | 1:7 inches |
| Barrel Material | 4150 CMV |
| Muzzle Threads | 1/2/2028 |
| Barrel Finish | Black Nitride |
| Gas Block Size | .625″ Gas Block |
| Fit | AR-15 |
| Barrel Profile | Pencil |
| Barrel Gas System | Midlength |
| Gas Block Journal Length | 1.9 inches |
| Barrel Extension | M4 |
| Weight | 23 ounces |























