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Questions & Answers
Customer Reviews
Helpful Positive Review
If you need one get it , by Ruffian, Verified Owner, March 9, 2024
Haave not used these, but from what I see and feel they have to work. Just put a bolt together and NO PROBLEMS. Always nice to have a spare part or two around.
1/1 found this helpful
Helpful Positive Review
Just in case by Azgunguy, Verified Owner, April 28, 2026
I picked these up due to my new maxim defense PDW coming with a retainer that was deformed from the factory due to being forced in. Having several spare pins is a great idea, I will keep a couple in my range kit and at home in my spare parts kit.
1/1 found this helpful
Most Recent Reviews
when needed by kwik, Verified Owner, June 12, 2026
I started replacing the retaining pin when it shows any wear or when the pins springiness is in question.
Most Recent Reviews
Top Quality! by izahillbilly2, Verified Owner, February 27, 2026
Excellent quality and finish and a good price! Thanks OP!
Most Recent Reviews
Excellent Product by Roel, Verified Owner, June 26, 2025
Works good.Very fast shipping and response.It helps to have extra parts around when you need it.
Most Recent Reviews
AR-15 Firing Pin Retaining Pin by Jerry Bromley, Verified Owner, November 4, 2024
I am a New Gunsmithing and just build up the equipment that I am going to used. I like the cost and had fast I received them.
Read All 14 Reviews
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Product Info for Obsidian Arms AR-15 Firing Pin Retaining Pin

Obsidian Arms AR-15 / M16 Firing Pin Retaining Pin, 5 Countimage

Specifications for Obsidian Arms AR-15 Firing Pin Retaining Pin:

Manufacturer: Obsidian Arms
Color: Black
Gun Make: AR Platform
Gun Model: AR-15
Country of Origin: USA

Features of Obsidian Arms AR-15 Firing Pin Retaining Pin:

  • High quality components
  • For new builds or replacing worn parts

Package Contents:

  • Obsidian Arms AR-15 Firing Pin Retaining Pin

Obsidian Arms AR-15 Firing Pin Retaining Pin Orderable Models

List of Orderable Models

  • Obsidian Arms AR-15 Firing Pin Retaining Pin, 5 count, Black, OA-AR-15-FPRP-5 , MPN: OA-AR-15-FPRP-5 , UPC: 850011609453 , Code: OB1-ABA-FPRP15-OA-AR-15-FPRP-5
  • Obsidian Arms AR-15 Firing Pin Retaining Pin, 10 count, Black, OA-AR-15-FPRP-10 , MPN: OA-AR-15-FPRP-10 , UPC: 850011609460 , Code: OB1-ABA-FPRP15-OA-AR-15-FPRP-10
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Last updated 2026-06-26 UTC.