AR-15 Rifle Length Buffer Tube Assembly Mil Spec Diameter - Rifle Buffer Tube, 5.2 oz Buffer, & Rifle Length Spring

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Breek Arms brings you an all in one assembly at an extremely affordable price that contains all the components needed to mount a Rifle Length Buttstock of your choice to an AR-15 rifle or M4 carbine.  This Rifle Length Mil Spec Diameter Tube (1.14") will function on any standard AR-15 Lower Receiver and accept any Rifle Length stock - for an A1 stock the buffer tube can be used as is, for the slightly longer A2 stock add on the included spacer and insert it into the stock on the end of the buffer tube. Note that a longer A2 length buttpad screw is included, but not the short A1 screw.

The 4 Piece Rifle Length Buffer Tube Assembly Kit includes all of the following...

  • Mil Spec Rifle Length Buffer Tube
  • Buffer Spring
  • 5.2 oz Recoil Buffer
  • Extension for A2 stock, with longer A2 length Buttpad Screw

Product Specs

Material: 7075 Aluminum

Finish: Hard Coat Anodized - Black

Style & Size: Rifle Length - Mil-Spec Diameter

Tube Outer Diameter: 1.14 inches

Tube Length: 10 Inches

Buffer Length: 5.9 Inches

Buffer Extension Spacer Length: 5/8 Inch

Not for use in a 308 - See our 308 Buffer tube assembly!


6 Reviews Hide Reviews Show Reviews

  • 5
    AR-15 Rifle Length Buffer Tube Kit

    Posted by Joel on Feb 22nd 2023

    Very high quality. Super fast shipping and quick response to question I had about order. Very pleased with product and service. Will definitely order from again, glad I found this company.

  • 1
    A2 spring kit

    Posted by Michael Salerno on Feb 20th 2023

    I still have not received my order. It is pretty hard to read something that you still do not have.

  • 5
    Ar15 rifle length buffer tube assembly

    Posted by Nick on Sep 21st 2022

    Bought 2 , great quality, thanks break arms !

  • 5
    Great tube kit

    Posted by Roy D Lee on May 9th 2019

    I acquired a good condition M16a1 full stock. This fit it just right by eliminating the a2 stock piece. No problems at all after install. If I need another I know were to find it.

  • 5
    Excellent buffer tube

    Posted by Jamison B. on Aug 20th 2018

    I will happily purchase another one if needed.

  • 5
    Nice fit

    Posted by Jeremy T Rustad on Jul 23rd 2018

    This buffer kit fit beautifully on my build. I will be ordering again on my next one. Buffer tube had a really nice finish. Thanks breek for the great product.