AT3™ Mil-Spec AR-15 Firing Pin

$9.99

or 4 interest-free payments of $2.50 with Sezzle

In stock
Orders ship within 1 business day · free standard shipping on orders $139+
SKU: AT3-Firing-Pin-556

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Product description

AT3 Hard Chrome Firing Pin

The AT3™ Mil-Spec AR-15 Firing Pin is a premium replacement component for your AR-15. This component is guaranteed to fit and function in your AR and is perfect for replacing lost or damaged parts.

It’s made heat treated 8640 steel and hard chromed to prevent breakage, increase the component’s longevity, and make it easier to clean. All AT3 Tactical upper receiver parts meet or exceed Mil-Spec.

Features

  • Fits all standard AR15 sized bolts
  • Precision machined from heat treated 8640 steel
  • Hard Chrome Plated
  • Manufactured to Mil-Spec dimensions
  • 100% American Made

Customer reviews 12

rsalinas Verified buyer
Since I started purchasing accessories and parts from AT3, ive always been satisfied and will continue to buy from them.
Ive recommended AT3 to all of my fellow officers and they are happy with their purchases!!! Thank you for your quality and easy purchase website!!!
dmreith2002 Verified buyer
Great service fast delivery and AT3 gets an A+ as well!
edwincotto59 Verified buyer
I love this firing pin because it feels solid and firm. I compared it to the one on my S&W and BCG, and they have the same dimensions. The base of the firing pin that holds the pin is slightly larger, but it seals well and slides smoothly. Excellent quality and durable product. Don't hesitate to buy it.

AT3 Tactical · Thank you for your positive review! We are glad to hear that you are satisfied with our AT3™ Mil-Spec AR-15 Firing Pin. We take pride in the quality and durability of our products and we are happy that it met your expectations.

Richard Beskosty Verified buyer
Replaced my stock firing pin after a trip to the range proved my firing pin tip had broken. I wanted to test a new load with my .223 55gr hand load. Pulled the trigger is all I heard was a click. I then tried a mag of “factory” .223 and had the same result. Bought a few of these firing pins and now my rifle no long just goes click. Now click bang.

AT3 Tactical · Thank you for the review and for taking the time to write it. We're glad to hear that this firing pin works perfectly and solves a common issue - having a rifle that just goes click instead of bang.

NORMAN OLIVER Verified buyer
Everything's great works good AT3 tactical is great

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Robert Coble Verified buyer
It is working fine with no problems

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

kevin hiatt Verified buyer
Fast service good parts good verity of parts and first quality

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Charles Lobrie Verified buyer
As of right now I don’t have much to as I have not had a chance to install it. But I did read the spec, before I ordered it so if it performs as described along with the new trigger I wi be a happy camper. As it stands I have never purchased any item from AT3 that has not performed above description, I look forward ward to our next review by then you will know what I know.

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!

EagleTactical Verified buyer
AT3™ Mil-Spec AR-15 Firing Pin

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!

BCs Tactical Gear Verified buyer
AT3™ Mil-Spec AR-15 Firing Pin

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!

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Warranty & returns

Backed by the AT3 Lifetime Warranty!

90-day no-hassle returns

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

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