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Questions & Answers
Is this a 6061 or 7075 grade aluminum buffer tube? Manufacturer Answer

We currently use 7000 series aluminum

by TACFIRE INC., Manufacturer, July 2, 2025
Will this work with a 300 black out 6in barrel? Or should I go with a heavier Aero H3 setup? Manufacturer Answer

This will work properly is the gas pressure is sufficient. I would recommend an adjustable gas block alongside this kit.

by TACFIRE INC., Manufacturer, December 11, 2024
Customer Reviews
Helpful Positive Review
Buffer tube kit by Cyotie j, December 3, 2020
Fits great was in great condition and packed very good may say over packed plenty of cushion strong box. Everything was there that I ordered ,and on time came on the date that was stated.will buy from you again keep on Rocking!!!!
2/2 found this helpful
Helpful Positive Review
On Budget and On Target by Angel, April 16, 2018
Purchased the AR15 Buffer tube kit. This kit is quality made which shows company has a good quality control. Bought it for my build which was on budget. Have no regrets. Made in USA, well contructed, does what it is suppose to do. Would highly reco...
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4/4 found this helpful
Helpful Positive Review
Love this company, I purchase this adjustable buttstock with the buffer tube. As far as delivery it Got here quick. Can’t wait to put it together. I would definitely order and recommend this company. I’m very happy.
1/1 found this helpful
Helpful Negative Review
They admit it's out of spec by Dan, March 1, 2017
I bought a few of these for cheaper builds and am not impressed! They mic out smaller than milspec so I figured something went wrong with the production process. Emailed them and they responded acknowledging that they do in fact manufacture them to a...
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17/18 found this helpful
Most Recent Reviews
It's good, nothing fancy by Chris, Verified Owner, December 17, 2025
I ended up switching the buffer for a 9mm buffer for my build but everything else was fine.
Most Recent Reviews
out of spec by LVZ, Verified Owner, August 31, 2025
So far out of spec it hand to be filed down to allow charging handle to cycle. Probably 1/16” too large pretty terrible QC.
Read All 66 Reviews
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Product Info for Tacfire AR-15 Buffer Tube Kit

If you're looking around for an excellent offer for the TacFire AR-15 Buffer Tube Kit, then you have found yourself in the ideal spot. TacFire has been making top-quality products for several years, and the Tacfire AR-15 Buffer Tube Kit is their very own way of showing you how much they care. These AR15 Buffer Assemblies from the skilled product specialists at TacFire are made by using dependable and efficient materials to provide you with a product that will be beneficial for quite some time. Designed using some of the most helpful accessible components and design, these unique AR15 Lower Parts through the product professionals at TacFire can last an unbelievably long time.image

WARNING: California`s Proposition 65

Specifications for Tacfire AR-15 Buffer Tube Kit:

Manufacturer: TacFire
Color: Black
Gun Make: AR Platform
Gun Model: AR-15
Condition: New

Package Contents:

  • Tacfire AR-15 Buffer Tube Kit
  • 6 Position Buffer Tube
  • 3 oz. Buffer
  • Carbine length buffer spring
  • End Plate
  • Castle Nut

Tacfire AR-15 Buffer Tube Kit Orderable Models

List of Orderable Models

  • Tacfire AR-15 Mil-Spec Buffer Tube Kit W/ Standart End Plate, 8 in 6-position, Black, MAR048 , MPN: MAR048 , UPC: 811261022003 , Code: 29U-BFA-AR15BTK-MAR048
  • Tacfire AR-15 Mil-Spec Buffer Tube Kit W/ Standard End Plate, 7.25 in 6-position, Black, MAR047-A , MPN: MAR047-A , UPC: 811261021990 , Code: 29U-BFA-AR15BTK-MAR047-A
  • Tacfire AR-15 Mil-Spec Buffer Tube Kit W/ Dual Loop End Plate, M4 Style 6-position stock, Black, MAR047-B , MPN: MAR047-B , UPC: 811261023727 , Code: 29U-BFA-AR15BTK-MAR047-B

Tacfire AR-15 Buffer Tube Kit Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Tacfire AR-15 Mil-Spec Buffer Tube Kit W/ Standard End Plate, 7.25 in 6-position, Black, MAR047-A , MPN: MAR047-A-EDEMO , Code: 29U-BFA-AR15BTK-MAR047-A-EDEMO-IN-D
  • USED Tacfire AR-15 Mil-Spec Buffer Tube Kit W/ Standard End Plate, 7.25 in 6-position, Black, MAR047-A, EDEMO7, Used, Condition Like New , MPN: MAR047-A-EDEMO7 , Code: 29U-BFA-AR15BTK-MAR047-A-EDEMO7
  • USED Tacfire AR-15 Mil-Spec Buffer Tube Kit W/ Standard End Plate, 7.25 in 6-position, Black, MAR047-A, EDEMO6, Used, Condition Fair , MPN: MAR047-A-EDEMO6 , Code: 29U-BFA-AR15BTK-MAR047-A-EDEMO6
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