CMMG AR-15 Barrel & BCG Kit - 16.1" - 5.7x28mm - Radial Delayed Blowback
or 4 interest-free payments of $131.24 with 
6 Magazines Per Order: Due to extreme volume, we are limiting sales of magazines to 6 per customer order. This applies to individual and bundled magazines. AT3 reserves the right to cancel any order over the 6 magazine limit.
- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Backed by the CMMG Warranty! what it covers
Product description
Gunner Balance and 5R Rifling for a 16″ .338 ARC Build
Features
- 16″ Match Series barrel chambered for .338 ARC AR-15 builds
- Gunner profile combines added support near the chamber with reduced weight toward the muzzle
- 5R button rifling with a 1:8 twist rate
- Carbine-length gas system
- 416R stainless steel construction with a black QPQ nitride finish
- NP3-coated barrel extension provides a low-friction, corrosion-resistant surface
- 5/8×24 muzzle threads accept compatible muzzle devices and suppressor mounts with sufficient .338-caliber clearance
- Made in the USA
The Faxon Match Series 16″ .338 ARC barrel uses the company’s Gunner contour to keep useful material near the chamber while trimming weight toward the muzzle for a more rear-biased balance. Its 1:8 5R button rifling, black nitride finish, and 5/8×24 muzzle threads make it a purpose-built option for .338 ARC AR-15 configurations.
Note: .338 ARC requires the correct bolt and magazine setup rather than standard 5.56 components. Verify bolt, magazine, upper receiver, and feed-ramp compatibility before assembly.
Specifications
- Brand: Faxon Firearms
- Series: Match Series
- Model: Gunner
- MPN: 15B338A8C16NGQ-5R-NP3
- Caliber: .338 ARC
- Barrel Length: 16″
- Profile: Gunner
- Rifling: 5R button rifled
- Twist Rate: 1:8
- Gas System: Carbine-length
- Muzzle Thread: 5/8×24
- Barrel Extension Finish: NP3
- Finish: Black QPQ nitride
- Color: Black
What’s Included
- 1x Faxon Match Series 16″ .338 ARC Gunner Barrel
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Warranty & returns
Backed by the CMMG Warranty!
CMMG Warranty
Seller warrants to Buyer that for a period of 6 months from the Delivery Date, all Goods will be:
- Free from any defects in workmanship, material, and design
- Conform to applicable specifications[, drawings, designs, samples and other requirements specified by Buyer]
- Fit for their intended purpose and operate as intended
- Merchantable
- Free and clear of all liens, security interests or other encumbrances
- Not infringe or misappropriate any third party’s patent or other intellectual property rights.
Inspection and Rejection of Nonconforming Goods
The Buyer has the right to inspect the Goods for a period of thirty (30) days after the Delivery Date. Buyer, at its sole option, may inspect all or a sample of the Goods and may reject all or any portion of the Goods if it determines the Goods are non-conforming or defective.
If Buyer rejects any portion of the Goods, Buyer has the right, effective upon written notice to Seller, to:
- Rescind the Order in its entirety
- Accept the Goods at a reasonably reduced price
- Reject the Goods and require replacement of the rejected Goods.
NOTES:
If Buyer requires replacement of the Goods, Seller shall, at its expense, promptly/within 30 days replace the nonconforming Goods and pay for all related expenses, including, but not limited to, transportation charges for the return of the defective goods and the delivery of replacement Goods.
If Seller fails to timely deliver replacement Goods, Buyer may replace them with goods from a third party and charge Seller the cost thereof and terminate this Order for cause pursuant to Section 20.
Any inspection or other action by Buyer under this Section shall not reduce or otherwise affect Seller’s obligations under the Order, and Buyer shall have the right to conduct further inspections after Seller has carried out its remedial actions.
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.
