AR-15 Carbine Buffer Tube Kit - Heavy H1

(3 reviews)
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KAK Industry AR15 H1 Carbine Buffer Tube Kit

The KAK Industry H1 carbine buffer tube kit includes everything you need for the receiver extension on your AR15 carbine or pistol

  • Mil-Spec diameter buffer tube - hard coat anodized
  • Music wire carbine buffer spring
  • H1 Heavy buffer - 3.8oz
  • Mil-Spec castle nut
  • Mil-Spec end plate
Buffer Weight:
Buffer Tube:


  • 5
    In-Spec, Affordable

    Posted by Glenn in SA on January 23, 2022

    It's hard to find a good, truly in-spec receiver extension (buffer tube) that doesn't cost an arm and a leg. Unless you look at KAK. This kit includes everything but the actual stock. I ordered this kit because I wanted an H1 buffer too. Everything fits correctly, and the finish is smooth and even.

  • 5
    Fits excellent and looks great. Nice bundle withe the QD plate!

    Posted by Raymond on November 27, 2016

    Awesome price and fast shipping! No, disappointment om performance.

  • 5
    300 blk pistol

    Posted by derek on March 7, 2016

    Great kit for a slim look. Has a great finish and fit.