
Availability: In Stock
The KNS Precision AR-15 firing pin retaining pin keeps your bolt carrier group functioning reliably through thousands of rounds. Built on a design that traces back to Eugene Stoner's original AR-15 prototype, this retaining pin secures the firing pin in place so it won't drift or shift under recoil. It's a small part that does a big job: preventing the kind of malfunction that can ruin a match or hunt. If you're serious about AR-15 reliability, this is the kind of detail that separates a dependable rifle from one that leaves you guessing.
The pin is machined from heat-treated steel, which balances strength with the slight flex needed to snap into place and stay put. It works with any standard AR-15 bolt-carrier group, so whether you're running a factory BCG or a precision match unit, it'll drop right in. The black finish resists corrosion and blends seamlessly with the rest of your carrier group. Installation is straightforward—no gunsmithing required.
This is the kind of upgrade that doesn't grab headlines but absolutely deserves a spot in your build. Shooters who pay attention to these fundamentals end up with rifles that run flawlessly year after year. Drop one in and forget about it.
| Brand | KNS Precision, Inc. |
| Product | AR-15 Firing Pin Retaining Pin |
| Material | Heat-treated steel |
| Finish | Black |
| Compatibility | Standard AR-15 bolt-carrier groups |
Yes, it's designed to work with any standard AR-15 BCG. It will not work with .308 bolt-carrier groups.
A quality retaining pin keeps your firing pin securely seated and prevents drift or shift under recoil. This improves reliability and consistency, especially over thousands of rounds.
No. Installation is straightforward and requires no special tools or gunsmithing knowledge.
It's machined from heat-treated steel, which provides both strength and the controlled flex needed to function reliably in your carrier group.

SKU: 115756512 • Width: 4.5in • Height: 0.5in • Depth: 5.75in • Weight: 0.06oz





Availability: In Stock
The KNS Precision AR-15 firing pin retaining pin keeps your bolt carrier group functioning reliably through thousands of rounds. Built on a design that traces back to Eugene Stoner's original AR-15 prototype, this retaining pin secures the firing pin in place so it won't drift or shift under recoil. It's a small part that does a big job: preventing the kind of malfunction that can ruin a match or hunt. If you're serious about AR-15 reliability, this is the kind of detail that separates a dependable rifle from one that leaves you guessing.
The pin is machined from heat-treated steel, which balances strength with the slight flex needed to snap into place and stay put. It works with any standard AR-15 bolt-carrier group, so whether you're running a factory BCG or a precision match unit, it'll drop right in. The black finish resists corrosion and blends seamlessly with the rest of your carrier group. Installation is straightforward—no gunsmithing required.
This is the kind of upgrade that doesn't grab headlines but absolutely deserves a spot in your build. Shooters who pay attention to these fundamentals end up with rifles that run flawlessly year after year. Drop one in and forget about it.
| Brand | KNS Precision, Inc. |
| Product | AR-15 Firing Pin Retaining Pin |
| Material | Heat-treated steel |
| Finish | Black |
| Compatibility | Standard AR-15 bolt-carrier groups |
Yes, it's designed to work with any standard AR-15 BCG. It will not work with .308 bolt-carrier groups.
A quality retaining pin keeps your firing pin securely seated and prevents drift or shift under recoil. This improves reliability and consistency, especially over thousands of rounds.
No. Installation is straightforward and requires no special tools or gunsmithing knowledge.
It's machined from heat-treated steel, which provides both strength and the controlled flex needed to function reliably in your carrier group.
SKU: 115756512 • Width: 4.5in • Height: 0.5in • Depth: 5.75in • Weight: 0.06oz
