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AT3™ Mil Spec AR-15 Buffer Tube – 9 Colors Available

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Backed by the AT3 Lifetime Warranty!
TOP ADD-ON'S
AT3 Tactical Carbine Buffer Spring for AR15

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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

Products available on this page:

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.

AT3 Lifetime Warranty Logo

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.

This includes AT3 Red Dot SightsHandguardsIron 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.

Customer Reviews

Based on 100 reviews
90%
(90)
7%
(7)
1%
(1)
2%
(2)
0%
(0)
L
L Mott
Completes the build

Very nicely color matched which we know can be a pain to ask from some companies, good quality, solid construction. Will buy again (especially for the price)

Thank you for the positive feedback! We are glad to hear that our AR-15 buffer tube completed your build and that you were pleased with the color matching and quality. We appreciate your support and look forward to serving you again in the future. Happy shooting!

L
L Mott
Decent tube

Nicely color matched, good construction. Plan to buy fpr the next build

Thank you for taking the time to leave a review for our AT3™ Mil Spec AR-15 Buffer Tube. We're happy to hear that you are pleased with the color match and construction. We appreciate your support and hope to have the opportunity to assist you with your next build. Thanks again!

E
Erik Faune
Great product

Quality and affordable! 10/10

D
Dean Toro
Very nice

I bought one of the black ones for a blackout 300 I built for my friend and it was super light, but was machined and finished very well. I will for sure use these on my next builds

Thanks for taking the timeout to share your feedback, we're glad you are satisfied with your purchase!

J
Jaimie Clarke
Solid product/buffer tube

The burnt bronze matches the rest of the build perfectly 👌🏽

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