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Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set Up to 10% Off w/ Free S&H — 5 models

Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Green MILTUBESET-GREEN
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Purple MILTUBESET-PURPLE
GUNTEC USA AR-15 Mil-Spec Buffer Tube Set,Black MILTUBESET
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Blue MILTUBESET-BLUE
GUNTEC USA AR-15 Mil-Spec Buffer Tube Set,Flat Dark Earth MILTUBESET-FDE
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Green MILTUBESET-GREEN
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Purple MILTUBESET-PURPLE
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Blue MILTUBESET-BLUE
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Green MILTUBESET-GREEN
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Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Green MILTUBESET-GREEN
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Purple MILTUBESET-PURPLE
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Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Purple MILTUBESET-PURPLE
GUNTEC USA AR-15 Mil-Spec Buffer Tube Set,Black MILTUBESET
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GUNTEC USA AR-15 Mil-Spec Buffer Tube Set,Black MILTUBESET
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Blue MILTUBESET-BLUE
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Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Blue MILTUBESET-BLUE
GUNTEC USA AR-15 Mil-Spec Buffer Tube Set,Flat Dark Earth MILTUBESET-FDE
5 of 8 images
GUNTEC USA AR-15 Mil-Spec Buffer Tube Set,Flat Dark Earth MILTUBESET-FDE
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Green MILTUBESET-GREEN
6 of 8 images
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Green MILTUBESET-GREEN
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Purple MILTUBESET-PURPLE
7 of 8 images
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Purple MILTUBESET-PURPLE
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Blue MILTUBESET-BLUE
8 of 8 images
Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Blue MILTUBESET-BLUE

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Questions & Answers
Will this fit a savage MSR-10? Expert Answer

Yes. The Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set will fit a Savage MSR 10.

by Ethan, Gear Expert, June 16, 2022
Hey,will this fit the Rock Island VR80? There tube is a commercial size. Thanks Expert Answer

Our Mil-spec buffer tube set will not fit the Rock Island VR80 if it is designed for a commercial tube. You need to use a commercial tube for this.

by Brandon B, Gear Expert, November 3, 2021
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Negative Review
Works, but has ribbing by Robert, April 8, 2021
It fits, but it has slight interior ring ribs which can be felt with a finger. It is not polished smooth like Aero Precision tubes. It will increase action noise when the buffer is sliding. But it works if you don't mind that.
1/1 found this helpful
Most Recent Reviews
Color is off by DG, Verified Owner, September 14, 2025
Bought this to go with an ODG build and comparing it to the rest of the build, it came out looking more like zombie green than ODG. Ended up using a regular black buffer extension tube instead, was highly disappointed.
Most Recent Reviews
guntec buffer tube set by steve, Verified Owner, June 13, 2025
Not bad at all and alot cheaper then most high grade buffers
Most Recent Reviews
buffer tube by Kirk, Verified Owner, April 28, 2024
Fits as it should. Is actually fde in color. Looks great with my 5.56 build in fde.
Most Recent Reviews
Please Lmk by Troy, May 28, 2020
Will This Work For My AR Rifle. I’m Wanting Upgrade From Commercial Buffer Tube To Mil-Spec. Please Lmk Its Diamondback Db15-2, I Just Got It Tryna Get In To The AR Platform . I Done Upgraded Trigger Guard , Handgaurd . This Website Good Site I Recom...
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0/1 found this helpful
Most Recent Reviews
No issues noted by Tyrod, Verified Owner, October 30, 2019
Ordered this on the 14th Oct and received it on the 18th so shipping was good. Put this on a 80% lower from RightToBear.com with no issues noted. The stock I installed was a good fit but a little tight / ruff feeling, not sure if this is the tubes fa...
Read More...
Read All 6 Reviews
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Product Info for Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set

Pick up a Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set to create a more reliable weapon. These AR15 Lower Parts by Guntec USA are constructed from T6 aluminum for a durable yet lightweight platform. This Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set is designed for use with standard buffer tubes and includes an upgraded chrome silicon spring. Crafted with T6 aluminum, this Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set is more than capable of handling the recoil of your firearm. When you need a reliable and easy to install buffer tube setup, look no further than the Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set.image

Specifications for Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set:

Manufacturer: Guntec USA
Fabric/Material: T6 Aluminum
Gun Make: AR Platform
Gun Model: AR-15
Condition: New
Weight: 10 oz

Features of Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set:

Features of Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set:

  • Mil-Spec Buffer Tube Kit
  • End Plate
  • Castle Nut
  • 3 oz CAR Buffer
  • Upgraded Chrome Silicon Spring
  • T6 Aluminum
  • Six Position Buffer Tube

Package Contents:

  • Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set

What firearm models does the manufacturer say Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set is compatible with?

The manufacturer says that Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set is compatible with AR-15

Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set Orderable Models

List of Orderable Models

  • Guntec USA AR-15 Mil-Spec Buffer Tube Set, 6-position, CAR Buffer/Spring/End Plate/Castle Nut, Black, MILTUBESET , MPN: MILTUBESET , UPC: 714569646639 , Code: 2AH-BFA-AR15MSBTS-MILTUBESET
  • Guntec USA AR-15 Mil-Spec Buffer Tube Set, 6-position, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Green, MILTUBESET-GREEN , MPN: MILTUBESET-GREEN , UPC: 714569650933 , Code: 2AH-BFA-AR15MSBTS-MILTUBESET-GREEN
  • Guntec USA AR-15 Mil-Spec Buffer Tube Set, 6-position, CAR Buffer/Spring/End Plate/Castle Nut, Purple, MILTUBESET-PURPLE , MPN: MILTUBESET-PURPLE , UPC: 714569651411 , Code: 2AH-BFA-AR15MSBTS-MILTUBESET-PURPLE
  • Guntec USA AR-15 Mil-Spec Buffer Tube Set, 6-position, CAR Buffer/Spring/End Plate/Castle Nut, Anodized Blue, MILTUBESET-BLUE , MPN: MILTUBESET-BLUE , UPC: 714569650957 , Code: 2AH-BFA-AR15MSBTS-MILTUBESET-BLUE
  • Guntec USA AR-15 Mil-Spec Buffer Tube Set, 6-position, CAR Buffer/Spring/End Plate/Castle Nut, Flat Dark Earth MILTUBESET-FDE , MPN: MILTUBESET-FDE , UPC: 714569649883 , Code: 2AH-BFA-AR15MSBTS-MILTUBESET-FDE

Guntec USA AR-15 6-Position Mil-Spec Buffer Tube Set Unavailable & Discontinued Models

List of Unorderable Models

  • Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Burnt Bronze, MILTUBESET-BRZ , MPN: MILTUBESET-BRZ , UPC: 714569650490 , Code: 2AH-BFA-AR15MSBTS-MILTUBESET-BRZ
  • Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Zombie Green, MILTUBESET-ZG , MPN: MILTUBESET-ZG , Code: 2AH-BFA-AR15MSBTS-MILTUBESET-ZG
  • Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Tungsten, MILTUBESET-TGS , MPN: MILTUBESET-TGS , UPC: 714569650520 , Code: 2AH-BFA-AR15MSBTS-MILTUBESET-TGS
  • Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Sniper Grey, MILTUBESET-SG , MPN: MILTUBESET-SG , UPC: 714569650513 , Code: 2AH-BFA-AR15MSBTS-MILTUBESET-SG
  • Guntec USA 6-Position Mil-Spec Buffer Tube Set, AR-15, CAR Buffer/Spring/End Plate/Castle Nut, Artic White, MILTUBESET-AW , MPN: MILTUBESET-AW , UPC: 709016735509 , Code: 2AH-BFA-AR15MSBTS-MILTUBESET-AW
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