We Ship Fast!
Order by 1PM CST for Same Day Shipping (Mon-Fri)
AT3™ AR-15 Bolt Carrier Group – 6.5 Grendel Type II – Black Nitride
All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.
This includes AT3 Red Dot Sights, Handguards, Iron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.
In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.
If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.
If your product is in need of warranty service, please contact AT3 Tactical to start the process
Our contact info is available here. To expedite processing, please provide your order information and description of the defect.
Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.
You will receive fast, free shipping for all orders over $50
Shipping cost is $7.99 for orders under $50. We ship with UPS or USPS, depending on the item.
Most orders received by 1pm CST ship the same day
You will receive an email with tracking information at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses. Orders placed on weekends, holidays, or after 1pm will ship the following business day.
Complete your hard-hitting 6.5 Grendel upper with a Black Nitride Bolt Carrier Group
Our new 6.5 Grendel Bolt Carrier Group features a black salt bath nitride finish, MPI inspected bolt, properly staked grade 8 gas key screws, and a lifetime warranty.
The black nitride finish features excellent hardness and lubricity, which means this BCG is durable, easy to clean, and less reliant on lubrication when compared to mil-spec phosphate coating
The bolt carrier group is the workhorse of your rifle, and a quality BCG is critical to reliable rifle function. Get a bolt carrier group that is guaranteed to last a lifetime.
Made in the USA
- Caliber: 6.5 Grendel Type II
- Finish type: Black Salt Bath Nitride
- Carrier Type: M16 Auto (Ideal for AR-15)
- Carrier Material: 8620 Gun Steel
- Gas Key Material: 4130 Steel
- Gas Key Screws: Grade 8
- Bolt Material: MPI tested 9310 Steel, Shot Peened
- Extractor Material: 4140 Steel
- Cam Pin Material: 8620 Steel
- Firing Pin Material: 4140 Steel, Chrome Plated
- Mil-Spec O-Ring and Gas Rings