Aero Precision Enhanced AR-10 Carbine Buffer Kit

SKU: APRH101248

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AR-10 Enhanced Mil-Spec Buffer Tube Kit

This enhanced buffer kit for AR-10 style rifles offer some great features over a standard carbine buffer kit.  The enhanced buffer tube keeps things simple with assembly, with quality-of-life improvements like carrier support extensions.  The extensions allow you to perfectly align the tube, and prevent bolt bounce when your battle rifle is cycling.

The buffer tube also features a ramped rear section, allowing for tool-free installation of your favorite AR-10 stock.  If you’ve ever had to finagle a Magpul stock on a standard tube, you know it can be a hassle.  At the bottom of each position guide, the tube also has drainage holes for water or excess gas in your gun.

This kit also features a .308 buffer spring, .308 carbine buffer (3.8 oz), castle nut, and endplate, ready to install on your AR-10 or M5 lower of choice.


  • Carrier Support Extensions – Fully supports and guides the bolt carrier group into the buffer tube after a round is fired, preventing carrier tilt and unnecessary wear on key components. The Carrier Support Extensions also extend on either side of the buffer retaining pin, securing the pin in place while simultaneously preventing the buffer tube from backing out under recoil.
  • Position Guide Drain Holes – Each position guide features a drainage hole that removes water from the system in marine environments. During routine operation, smoother cycling is achieved by allowing additional air to escape during the compression cycle of the rifle.
  • Ramped Tube Design – Allows for effortless installation of traditional carbine stocks.  Aero has removed the need for messing around with screwdrivers to get your furniture over the end of the buffer tube. Simply hold down the adjustment piece and push your stock onto the Enhanced Buffer Tube.
  • Proper Thread Depth – Traditional buffer tubes feature extended unused threads that can cause your stock to become trapped when fully collapsed. While some turn these threads down, Aero has correctly machined the threads to the proper depth, providing a much cleaner look.
  • Mil-spec Dimensions – Machined from a 7075-T6 Aluminum Impact Extrusion to mil-spec dimensions. All standard carbine stock options made to work with mil-spec buffer tube dimensions are compatible with the Enhanced Carbine Buffer Tube.


  • Enhanced Carbine Buffer Tube, 6-position
  • .308 Carbine Buffer (3.8 oz)
  • .308 Carbine Buffer spring
  • Endplate and lock nut

*Enhanced Carbine Buffer Tube is compatible with mil-spec diameter stocks


  • Materials
    • Buffer Tube: 7075-T6 Aluminum
    • Carbine Buffer: Aluminum with Steel Inserts
    • Castle Nut: Steel
    • Endplate: Steel
    • Buffer Spring: Steel
  • Overall Weight: 10.4 oz

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Aero Precision Warranty

If for any reason you have a warranty issue with one of our products, please contact us at 253-272-8188.

Please describe your situation, include your name and order number or transaction id. One of our technical specialists will then review your claim and contact you within 3-5 business days.

If you have images to send, please email them to

Damaged Items

In regards to claims dealing with damaged or blemished products, we ask that you create a Help Desk Ticket on your My Account page. If you don’t have an account with us, please go to the Contact Us page and fill out the form for review within 72 hours upon receiving the shipment.

If you have images to send, please email them to

Failed Background Check

There will be a 30% restocking fee on all lower receivers returned because of failed background checks.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 3 reviews
D Harris
AR 10 Buffer Kit

Works great. Quality is good.

Thank you for taking the time to leave a review. We are glad to hear that our AR-10 Buffer Kit is working great for you. We take pride in providing high-quality products and we are happy to know that it met your expectations. Thank you for choosing Aero Precision.

Aero buffer kit

The aero buffer kit was delivered quickly and was in excellent condition worked as it should

Great! I'm glad it worked well and arrived quickly.

John Derby

Aero Precision Enhanced AR-10 Carbine Buffer Kit

Thanks for the review! We're glad to hear that you're happy with the product.