AR-15 Hammer Pin

The AR-15 hammer pin is one of the many new house-brand AR-15 spare and replacement parts that we here at have recently begun to offer. These brand new, MIL-SPEC hammer pins are guaranteed to fit in your MIL-SPEC AR-15.

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American Owned and Operated


20+ Years In Business


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Ships from Pennsylvania


The AR-15 hammer pin, 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 through the center of the lower receiver adjacent the hammer and hammer spring, the AR-15 hammer pin is a small roll pin designed to secure the positions of both the hammer and the hammer spring within the lower receiver. This small component is of utmost significance, as its inclusion allows for both of the aforementioned parts to contribute their functions to the firing sequence. Without the hammer pin, neither the hammer nor the hammer spring will function properly.   

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 may have an impact on the firing sequence. 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.

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Overall Rating
Great Website
Review by Jesus C.
Cheapest price anywhere that was online. Shipping was fast from Fedex.
Overall Rating
Great AR15 hammer pin
Review by Elzie V.
Delighted with this transaction.
Overall Rating
Superb AR15 hammer pin
Review by Albin L.
Overall Rating
Great for my use
Review by Jamille D.
Overall Rating
THANKS keepshooting
Review by Karry Y.
Finest AR15 hammer pin for the buck shipped by a awesome company. Thank you keepshooting!
Overall Rating
Good Company
Review by Harris T.
Received in two days after placing my order. Will be back to buy at KS again!
Overall Rating
Rapid Delivery
Review by Lucky J.
hammer pins look wonderful. Exactly what I needed.
Overall Rating
Great Company
Review by Willis P.
Price is good and shipping was speedy.
Overall Rating
Good for me
Review by Bradford I.
I ordered two of these hammer pins. Used one for repair, other is spare.
Overall Rating
Fast Shipping
Review by Lelan E.
Best AR15 hammer pin for the buck shipped by a terrific company. Thank you keepshooting!
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