AR-15 Buffer Retainer

The AR-15 buffer retainer is an integral part of the AR-15 rifle. This small component is designed to keep both the buffer and buffer spring in the receiver extension where they belong.

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Ships from Pennsylvania


The AR-15 buffer retainer, as are all of our house brand spare and replacement parts for the AR-15 platform, is a brand new part produced in a state-of-the-art manufacturing facility that holds several foreign military contracts. As such, all parts are compatible with and interchangeable in any MIL-SPEC AR-15.

Located at the rear of the lower receiver adjacent both the receiver extension and buffer, the buffer retainer is a small but vital component that extends upward out of the lower receiver and is designed to retain both the buffer and the buffer spring within the receiver extension. The buffer retainer is locked into place via the receiver extension, which should be screwed into the receiver deep enough so that it rests atop the shoulder of the buffer retainer.

Spare and replacement parts are an important consideration when it comes to firearms. Like any machine, firearms rely on a series of parts to function properly – especially those components that make up the fire controls. In general, if a part breaks or fails, a repair or replacement becomes immediately necessary – not only to keep a firearm functioning properly but also to ensure the safety of yourself and those around you.

It is also important to consider availability when discussing spare and replacement parts. At this time, is seeking to provide our customers with a wide selection of spare and replacement parts for the AR-15 platform. Several brand new parts from the house brand are now readily available on our website at an affordable price. If you have any need or desire for spare or replacement parts, now would be a good time to take advantage of this offering.

More Information
Overall Rating
Review by Toye Y.
Pleased with this AR15 buffer retainer.
Overall Rating
Very Satisfied
Review by Antonious G.
buffer retainers look wonderful. Exactly what I needed.
Overall Rating
Very Satisfied
Review by Shawndre P.
Received in two days after ordering. Will be back to shop from keepshooting.
Overall Rating
Thanks keepshooting
Review by Darnell I.
Overall Rating
Great Transaction
Review by Daevon I.
Received in two days after ordering. Will be back to shop at keepshooting again!
Overall Rating
Outstanding AR15 buffer retainer
Review by Ellen E.
Perfect replacement buffer retainer for my AR15.
Overall Rating
Very Pleased
Review by Jamon C.
buffer retainers look great. Exactly what I needed.
Overall Rating
A-1 Spare Part
Review by Jordon U.
Satisfied with this transaction.
Overall Rating
Great AR15 buffer retainer
Review by Ziven F.
I ordered two of these buffer retainers. Using one for repair, other is stored in my spares box.
Overall Rating
Review by Matthew D.
Received in three days after ordering. Will be back to buy at keepshooting again.
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