AR-15 Hammer Spring

Joining our growing list of available spare and replacement parts for the AR-15 platform is the new AR-15 hammer spring. As you know, a hammer is only as good as its spring, so make sure your springs are strong and elastic. The AR-15 hammer spring is, as noted, one of the many new house-brand AR-15 spare and replacement parts that we have recently begun to offer. These brand new, MIL-SPEC springs are guaranteed to fit in your MIL-SPEC AR-15 while offering optimal performance.

In stock

SKU N9349107

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20+ Years In Business

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Ships from Pennsylvania


The AR-15 hammer spring, 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 within the lower receiver adjacent the hammer, the AR-15 hammer spring is a vital component to the operation of the rifle, as it plays a crucial role in facilitating the firing sequence. After the firing sequence is initiated with a trigger pull, the hammer is thrust forward by the hammer spring so that it may strike the firing pin, which in turn strikes the cartridge primer. The hammer is only capable of doing so provided it is held under tension by the hammer spring. It is secured inside the lower receiver via the hammer pin.

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 impact 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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Customer Reviews

Just as described.
Review by Albin P.
Verified Buyer
The spare parts are excellent. Would definitely buy again.
Good for my use
Review by Markeith B.
Verified Buyer
Received in two days after placing my order. Will be back to shop at KS again.
Terrific Deal
Review by Braulio E.
Verified Buyer
Cost is wonderful and shipping was fast.
Terrific Price
Review by Herbie N.
Verified Buyer
Happy with this transaction.
Perfect Company
Review by Martial U.
Verified Buyer
hammer springs look great. Exactly what I needed.
Review by Kassidy H.
Verified Buyer
Functions great as a spare hammer spring for my AR15.
Review by Timmy S.
Verified Buyer
Parts look good. Exactly what I needed.
Very Pleased
Review by Sisto H.
Verified Buyer
I ordered two of these hammer springs. Used one for repair, other is stored in my spares box.
Review by Benedetto Q.
Verified Buyer
Received in two days after buying. Will be back to buy at KS.
Review by Evelyn P.
Verified Buyer
Received in two days after ordering. Will be back to buy from Keepshooting.
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