AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available
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From orders that included this itemProduct description
Mil-Spec AR-15 Carbine Buffer Tube
Made 6061-T6 aluminum construction with a black anodized finish, with six precision-machined notches to securely lock your stock into position. This buffer tube has a mil-spec diameter for broad compatibility with all mil-spec stocks on the market. Plus, we offer 8 durable Cerakote finishes for a custom look!
AT3 cannot warranty against Cerakote™ inconsistencies or the wearing of coatings over time.
Specifications
- Tube Diameter: 1.146″ (Mil Spec)
- Length: 7 1/4″
- Thread type: 1 3/16-16 UN-3B SPECIAL
- Material: 6061-T6 Aluminum
- Finish
- Black: Phosphate
- Flat Dark Earth: H-267 Magpul® Flat Dark Earth
- OD Green: H-232 Magpul® OD Green
- Pink: H-224 SIG™ Pink
- Red: H-167 USMC Red
- Blue: H-171 NRA Blue
- Burnt Bronze: H-148 Burnt Bronze
- Tungsten: H-237 Tungsten
- Titanium: H-170 Titanium
- Backed by the AT3 Lifetime Warranty
All 9 options on this page
- AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available - Color: Black | SKU: BT-01-MILSPEC
- AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available - Color: Burnt Bronze | SKU: BT-01-MILSPEC-BB
- AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available - Color: Tungsten | SKU: BT-01-MILSPEC-TG
- AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available - Color: Titanium | SKU: BT-01-MILSPEC-TI
- AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available - Color: Blue | SKU: BT-01-MILSPEC-BLU
- AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available - Color: Flat Dark Earth | SKU: BT-01-MILSPEC-FDE
- AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available - Color: OD Green | SKU: BT-01-MILSPEC-ODG
- AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available - Color: Pink | SKU: BT-01-MILSPEC-PNK
- AT3™ Mil Spec AR-15 Buffer Tube - 9 Colors Available - Color: Red | SKU: BT-01-MILSPEC-RED
Customer reviews 129
Good quilty, and great price! Installed on a JTSM12AR 12ga. shotgun.
AT3 Tactical · We're sorry for the fitment issues, Tom. The Burnt Bronze Cerakote finish can add enough thickness to make the initial installation feel tight. Applying a little firearms oil or grease to the threads usually helps smooth it out. If it still won't thread on, please contact our support team and we’ll get a replacement sent right away!
Questions & Answers
No questions yet. Ask about fit, install or compatibility and our team answers within a business day.
Warranty & returns
Backed by the AT3 Lifetime Warranty!

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.
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.
















