The ATI Outdoors AR-15 buffer spring (brand part no. A.5.10.1030) is a replacement spring for compatible AR-15 buffer systems. ATI Outdoors makes it in the USA and designed it to work with commercial, military and hybrid buffer tubes. A buffer spring takes a compression cycle every time the rifle fires, so swapping a worn or questionable one is one of the simplest ways to refresh the rear of the action. It also gives builders a dedicated spring for finishing a new lower alongside the right buffer and receiver extension.

Key Specifications

• The spring is built for AR-15 and AR variants, so it drops into a compatible buffer system on a standard build.
• It works with commercial, military and hybrid buffer tubes, which covers the common tube diameters on AR-15 rifles.
• Construction is described by ATI as virtually indestructible, a fit for a part that compresses with every shot.
• The spring is made in the USA by ATI Outdoors.
• ATI backs it with a limited lifetime warranty for long-term ownership.
• In use it controls the rearward travel of the bolt carrier group and drives the buffer system forward again to keep the rifle cycling consistently.

Frequently Asked Questions

Which buffer tubes does this spring work with? ATI states it works with commercial, military and hybrid buffer tubes on AR-15 and AR-variant rifles.

When should a buffer spring be replaced? Replace it when it is worn or questionable, or use it as the spring for a new build. ATI notes that buffer systems vary with receiver extension length, buffer type and rifle configuration, so match the spring to your setup.

Is it made in the USA? Yes. ATI Outdoors manufactures it in the USA and covers it with a limited lifetime warranty.

Buy the ATI Outdoors AR-15 Buffer Spring

A fresh spring is a cheap way to keep an AR-15 cycling smoothly, whether you are repairing a rifle or finishing a build. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and browse more parts in the AR buffer system section.