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AT3 Tactical AR-15 Mil Spec Buffer Tube Up to 35% Off — 5 models

AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC
AT3 Tactical AR-15 Mil Spec Buffer Tube, Blue, BT-01-MILSPEC-BLU
AT3 Tactical AR-15 Mil Spec Buffer Tube, ODG, BT-01-MILSPEC-ODG
AT3 Tactical AR-15 Mil Spec Buffer Tube, FDE, BT-01-MILSPEC-FDE
AT3 Tactical AR-15 Mil Spec Buffer Tube, Pink, BT-01-MILSPEC-PNK
AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC
AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC
AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC
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AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC
AT3 Tactical AR-15 Mil Spec Buffer Tube, Blue, BT-01-MILSPEC-BLU
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AT3 Tactical AR-15 Mil Spec Buffer Tube, Blue, BT-01-MILSPEC-BLU
AT3 Tactical AR-15 Mil Spec Buffer Tube, ODG, BT-01-MILSPEC-ODG
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AT3 Tactical AR-15 Mil Spec Buffer Tube, ODG, BT-01-MILSPEC-ODG
AT3 Tactical AR-15 Mil Spec Buffer Tube, FDE, BT-01-MILSPEC-FDE
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AT3 Tactical AR-15 Mil Spec Buffer Tube, FDE, BT-01-MILSPEC-FDE
AT3 Tactical AR-15 Mil Spec Buffer Tube, Pink, BT-01-MILSPEC-PNK
5 of 7 images
AT3 Tactical AR-15 Mil Spec Buffer Tube, Pink, BT-01-MILSPEC-PNK
AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC
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AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC
AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC
7 of 7 images
AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC

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Questions & Answers
will this work with on an ar10 Expert Answer

Yes, the AT3 Tactical AR-15 Mil Spec Buffer Tube will fit an AR10, as buffer tubes between the AR15 and AR10 platforms are interchangeable.

by Ethan, Gear Expert, August 11, 2022
Hello, Do I need to purchase a separate castle nut & end plate at for this buffer tube? Wld those be an obstruction for installing a Magpul PRS Lite? Expert Answer

The AT3 Tactical AR-15 Mil Spec Buffer Tube is compatible with Mil-Spec endplates and castle nuts. The Magpul PRS Lite Stock is also compatible with Mil-Spec endplates and castle nuts so the ones listed at the link below will work.
https://www.opticsplanet.com/at3-tactical-castle-nut-for-ar-15-buffer-tubes.html
https://www.opticsplanet.com/at3-tactical-mil-spec-end-plate-for-ar-15.html

by Hunter, Gear Expert, May 10, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review Epstein didn't kill himself by Deezol, Verified Owner, August 18, 2024
So i used this on a AK with the strike force adapter. It looks very good and matches the B5 grey color nicely. Ill buy another if i do a grey theme again. Shipping time from Optics wasn't bad either.
1/1 found this helpful
Helpful Negative Review Aluminum is very soft by Pete, Verified Owner, October 19, 2023
I would avoid this buffer tube due to the 6065 aluminum. It is way to soft and the threads strip very easily when tightening the castle nut. Had to return the one I purchased and went with another buffer tube that was 7075 aluminum and didn’t have th...
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1/1 found this helpful
Most Recent Reviews AT3 Buffer tube by Barry Shively, Verified Owner, August 23, 2025
Fits perfectly, threads are smooth and tight not sloppy. Odg color is a good match.
Most Recent Reviews Exact fde color by Moose, Verified Owner, July 31, 2025
Great buffer tube, doesn’t leave slide marks from stock, and exact FDE color. No 50 shades of FDE here!
Most Recent Reviews AR 15 parts by Wolf, Verified Owner, July 22, 2025
Great part fits exactly like it should the coating on it is very good. Processing of the order was a little slow in my opinion
Most Recent Reviews Great fit and color. by AJ, Verified Owner, April 15, 2025
This fits perfectly and the color is great. I'm trying to get this build to be as close as possible to same color for all components without having to paint them all and this is really close to Brownells aluma Hyde coyote.
Read All 19 Reviews

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Product Info for AT3 Tactical AR-15 Mil Spec Buffer Tube

For a Mil Spec buffer tube that's reinforced and machined from 6061-T6 aluminum, the AT3 Tactical AR-15 Mil Spec Buffer Tube is a reliable piece of buffer tube equipment. These AR15 Lower Parts by AT3 Tactical are a tough and durable solution for your rifle, protecting it from damage without limiting its rate of fire. This enhanced strength and rigidity provides a strong foundation for your firearm, keeping it locked and loaded in the field. Every AT3 AR-15 Mil Spec Rifle Buffer Tube is anodized for a matte black finish that will resist corrosion and extend its lifetime of use. Also, it has six precision-machined notches which ensure your stock stays securely locked into position. Boost the potential of your weapon by using this AT3 AR-15 Mil Spec AR-15 Buffer Tube.image

Specifications for AT3 Tactical AR-15 Mil Spec Buffer Tube:

Manufacturer: AT3 Tactical
Finish: Anodized
Fabric/Material: 6061-T6 Aluminum
Length: 7.25 in
Diameter: 1.146 in
Condition: New

Features of AT3 Tactical AR-15 Mil Spec Buffer Tube

  • Thread type: 1 3/16-16 UN-3B SPECIAL

Package Contents:

  • AT3 Tactical AR-15 Mil Spec Buffer Tube

AT3 Tactical AR-15 Mil Spec Buffer Tube Orderable Models

List of Orderable Models

AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC , MPN: BT-01-MILSPEC , UPC: 5060748420879 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC
AT3 Tactical AR-15 Mil Spec Buffer Tube, FDE, BT-01-MILSPEC-FDE , MPN: BT-01-MILSPEC-FDE , UPC: 5060748420886 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-FDE
AT3 Tactical AR-15 Mil Spec Buffer Tube, Pink, BT-01-MILSPEC-PNK , MPN: BT-01-MILSPEC-PNK , UPC: 5060748420916 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-PNK
AT3 Tactical AR-15 Mil Spec Buffer Tube, Blue, BT-01-MILSPEC-BLU , MPN: BT-01-MILSPEC-BLU , UPC: 5060748420923 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-BLU
AT3 Tactical AR-15 Mil Spec Buffer Tube, ODG, BT-01-MILSPEC-ODG , MPN: BT-01-MILSPEC-ODG , UPC: 5060748420893 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-ODG

AT3 Tactical AR-15 Mil Spec Buffer Tube Unavailable & Discontinued Models

List of Unorderable Models

USED, AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC , MPN: BT-01-MILSPEC-EDEMO , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-EDEMO-SC-C
USED AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC, EDEMO7, Condition Fair, Other , MPN: BT-01-MILSPEC-EDEMO7 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-EDEMO-OT-D
AT3 Tactical AR-15 Mil Spec Buffer Tube, Red, BT-01-MILSPEC-RED , MPN: BT-01-MILSPEC-RED , UPC: 5060748420930 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-RED
USED AT3 Tactical AR-15 Mil Spec Buffer Tube, Black, BT-01-MILSPEC, EDEMO6, Used, Condition Like New , MPN: BT-01-MILSPEC-EDEMO6 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-EDEMO6
USED AT3 Tactical AR-15 Mil Spec Buffer Tube, FDE, BT-01-MILSPEC-FDE, EDEMO2, Used, Condition Fair , MPN: BT-01-MILSPEC-FDE-EDEMO2 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-FDE-EDEMO2
USED AT3 Tactical AR-15 Mil Spec Buffer Tube, FDE, BT-01-MILSPEC-FDE, EDEMO1, Used, Condition Good , MPN: BT-01-MILSPEC-FDE-EDEMO1 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-FDE-EDEMO1
USED AT3 Tactical AR-15 Mil Spec Buffer Tube, ODG, BT-01-MILSPEC-ODG, EDEMO3, Used, Condition Like New , MPN: BT-01-MILSPEC-ODG-EDEMO3 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-ODG-EDEMO3
USED AT3 Tactical AR-15 Mil Spec Buffer Tube, Grey, BT-01-MILSPEC-GRY, EDEMO1, Condition Fair, Other , MPN: BT-01-MILSPEC-GRY-EDEMO1 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-GRY-EDEMO-OT-D
USED AT3 Tactical AR-15 Mil Spec Buffer Tube, ODG, BT-01-MILSPEC-ODG, EDEMO4, Condition Fair, Used , MPN: BT-01-MILSPEC-ODG-EDEMO4 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-ODG-EDEMO-US-D
AT3 Tactical AR-15 Mil Spec Buffer Tube, Grey, BT-01-MILSPEC-GRY , MPN: BT-01-MILSPEC-GRY , UPC: 5060748420909 , Code: 4U2-RBT-ATT1214-BT-01-MILSPEC-GRY
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