CMMG 300 AAC Blackout 16.1″ Barrel – Carbine Length 1:7 Twist – 4140 CrMo Salt Bath Nitride
SKU: 30DF80A
AT3 Stainless Gas Tube with Roll Pins - Carbine Length
AT3™ Low Profile Micro Steel Gas Block - .750"
CMMG .300 BLK 16 Inch Nitride Barrel
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
Specifications:
- 16.1″
- Multi Role Profile
- 4140 Chrome Moly
- Salt Bath Nitride Finish inside and out
- 1:7 Twist
- 300 AAC Blackout Chamber
- Threaded 5/8-24
- Carbine length gas port
- .750″ Gas Journal
Specifications:
| Caliber | .300 Blackout |
| Barrel Length | 16 inches |
| Barrel Twist Rate | 1:7 inches |
| Barrel Material | 4140 CMV |
| Muzzle Threads | 5/8/2024 |
| Barrel Finish | Black Nitride |
| Gas Block Size | .750″ Gas Block |
| Fit | AR-15 |
| Barrel Profile | Medium |
| Barrel Gas System | Carbine |
| Gas Block Journal Length | 1.1 inches |
| Barrel Extension | M4 |
Have Questions About this Product?
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.
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.
Customer Reviews
Barrel works as advertised. Not a $300 barrel, so it probably won't last through 100k rounds, but it's exactly what I needed. The biggest reason for 5 stars is just AT3 Tactical, hands down the best customer service I've come across building AR's from the internet. Had a problem with a defective product, let them know, received a response within 3 hours, they sent out a new one, and a return box for the defective one. You can buy from these guys with all confidence that you'll be satisfied or they'll make it right. The pic is sighting in with AT3's 2 MOA Red Dot firing 3 round groups, and checking placement. 75 yds with 1X optics, I'm more than satisfied with everything AT3 Tactical.
