MPN: APRH100151C / APRH100525


  • Mil-Spec 6-position buffer tube
  • Accepts Mil-Spec buttstocks


  • Material: 7075 T6 Aluminum
  • Weight:
    • Buffer tube: 3.65 oz.
    • Carbine Buffer: 2.95 oz.
    • H2 Buffer: 4.6 oz.
  • Finish: Hard coat anodized


  • AR-15


  • 1x Aero Precision Mil-Spec 6-Position Carbine Buffer Tube
  • 1x Carbine Buffer Spring
  • 1x Locknut (Castle Nut)
  • 1x End Plate
  • 1x Buffer


Every AR has a buffer system, but they’re not all created equal. Whether you’re building a new rifle from the ground up, replacing a buffer system that has come to the end of its service life, or you’re just ready to upgrade to better equipment, Aero Precision’s Mil-Spec Carbine Buffer Tube Kit is the perfect answer to your needs.

High-Quality Mil-Spec Buffer Tube Kit

Aero Precision’s Buffer Tube kits feature high-quality 7075-T6 Aluminum buffer tubes manufactured to Military Specifications. They’ll fit just about any Mil Spec sized receiver and stock you’d choose to marry them. Since they’re from Aero Precision, you know you can count on quality, fit and finish that will add a touch of class to your build.

7075 Mil-Spec Buffer Tube

There’s no struggling to fit an out of round tube to your receiver when you choose an Aero Mil-Spec buffer tube kit and fitment from the other end is no less perfect. When you fit your adjustable stock to a 6 position Aero 7075 Mil-Spec buffer tube you’ll be able to fine tune your length of pull for your best performance even if you choose to move it to adapt to different situations. The quality construction and finish of this buffer tube allow your stock to fit without slop and move smoothly through the entire range of positions without binding.

Aero Precision’s buffer tube kits include a quality buffer spring, end plate and lock nut as well as your choice of a standard weight (H1) Carbine buffer or a heavy (H2) Carbine buffer. Whichever carbine buffer you choose, Aero’s commitment to quality machining and finishing promises to deliver smooth operation. Aero’s standard buffer is perfect for most applications. It delivers flawless service in any standard gas system. Those who prefer to run a short gas system may find that a heavier buffer works better in their application. Likewise, if you have a short gas system that just doesn’t act right, an upgrade with Aero Precision’s Mil-Spec Buffer Tube Kit including an H2 buffer may be just what the doctor ordered.

Whether you order the standard or heavy buffer to go with your Mil-Spec buffer tube, an Aero Precision Buffer Tube Kit is sure to deliver quality fit and finish that will deliver the outstanding performance you can count on over a long service life.

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Reviews (13)

  • Very good buffer tube

    Posted by Mike on 22nd Aug 2023

    Fit and finish is simple great. You won’t be disappointed

  • Came with everything pictured. Shipped extremely fast, said 5 days but got it in 2. Fits my Anderson milspec lower and Magpul stock just fine.

    Posted by Kevin on 8th Apr 2021

    Exactly what I expected, faster than I expected it.

  • Aero Precision Mil-Spec Carbine Buffer Tube Kit

    Posted by Dean Harrison on 24th Jan 2021

    I replaced my factory fixed stock on Colt AR15 to collapsible Magpul CTR, so needed to replace the tube as well. Machining was good, and it was a direct fit. There is almost no play on the CTR stock which is nice. I'm using this with a 20" barrel HBAR and no issues.

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