Arm or Ally AR9 Carbine Buffer Kit

Ballistic Advantage Authorized DealerAero Precision Authorized Dealer

AoA AR9 Carbine Buffer Kit

Your choice of QD, Ambi-Loop, or Standard Endplate

The Arm or Ally AR9 Carbine Buffer Kit includes a Mil-Spec 7075-T6 aluminum 6-position carbine buffer tube, solid AR9 5.5oz buffer, buffer spring, lock nut, and your choice of endplate. 100% American-made, excellent machining, flawless fit, finish, and function.

See our entire selection of AR15 Buffer Kits here.

The AR9 Buffer Kit Includes

  • Buffer Tube, 7075-T6 6 Position, Hard Coat Anodized
  • 9mm Buffer-5.5 ounces
  • Castle Nut
  • Your choice of Endplate
  • Buffer Spring

What is the Arm or Ally Brand?

Arm or Ally branded products are manufactured in the same facilities and to the same standards as many popular, high-end brands. Our promise to you is a high-quality product at a more affordable price. 100% American made products, backed by the same defect-free warranty as every other product we offer.

Product Information

Part Type

Lower Receiver Parts

Made in USA




Endplate Style

Standard, Quick-Detach, Ambi-Loop


7075-T6 Aluminum

Coating Type

Black Anodize

Buffer Weight



Standard AR15 components



Arm or Ally

Arm or Ally is a stocking dealer for all Aero Precision, Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, TriggerTech, HIPERFIRE and named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!

See our growing inventory of AR Parts, and Reloading Components.