AR-15 Carbine Buffer Tube Kit Mil-Spec

(11 reviews)
Current Stock:
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KAK Industry Mil-Spec Carbine Buffer Tube kit- Reciever Extenssion 

Kit includes Buffer Tube, Carbine Buffer, Castle Nut, End plate, and Chrome Silicon Spring

Number of positions- 6

Buffer Weight- Carbine 3oz

Material- High Quality 7075 Aluminum

Finish- Black Military Hard Coat Anodize

Uses standard/ Milspec end plate and castle nut

Accepts AR15 buffers and springs



Buffer Weight:


  • 5
    Carbine buffer tube kit

    Posted by The guy leaving a review on January 17, 2024

    Nice machining, nice finish. Stock had good lockup on it. It's a good quality buffer and buffer tube..

  • 4
    What more do you want?

    Posted by Max on March 10, 2022

    It fits well and appears to be well made.

  • 5
    Amazing Service and Product

    Posted by Tristan on July 26, 2021

    I ordered the buffer tube kit, H2 Upgrade, and a wrench. Everything arrived fast than expected. My buffer tube had some issues with the threads, but I’m telling you now … the customer service was on it, I spoke with them on Friday, and Monday when I got home from work a new tube was sitting in the mailbox… no questions asked… that’s service! The new tube fit perfectly on my build, zero issues. Will definitely be shopping with KAK again. Great Product , Amazing Service, what can I say … customer for life!

  • 5
    Perfectly Balanced

    Posted by SWEET on June 8, 2021

    Love this set up, It worked flawlessly in my new AR-15 762x39 build.

  • 5
    Great product

    Posted by Juls on March 11, 2021

    Excellent parts at Excellent prices get them while you can before President house plant pushes another E/O

  • 5
    Always quality parts

    Posted by Steve on September 15, 2020

    As usual these part are excellent value. they fit perfectly, finish is awesome. fast shipping is great too. I recommend Kak to everyone.

  • 5
    Excellent Quality

    Posted by David on September 1, 2020

    Kit is of excellent quality. Zero issues. Good strong finish. Definitely worth the money

  • 5
    KAK Never Disappoints

    Posted by E.R. on July 10, 2020

    This is a high quality buffer tube kit at a great price. The tube itself is much sturdier than the one that came in a mil spec kit I purchased from another company. Overall quality is a staple of KAK. I have always been happy with the the products I've purchased from these guys and they also ship everything quickly via Priority Mail. I highly recommend KAK.

  • 5

    Posted by Kerry on August 22, 2016

    Exactly what I was looking for. And the upgrade option made it easy so I didn't have a buffer I didn't need. Will shop again.