Description
Swapping out worn or plain factory pins is one of the easiest upgrades you can make to an AR-15, and Fortis does it right with their Enhanced Takedown and Pivot Pin Set. This is a two-piece set built to replace your rear takedown pin and front pivot pin, giving you a cleaner fit and a finish that actually turns heads. The case hardened version carries a distinctive rose gold coloring that sets it apart from the sea of black nitride parts out there.
What Sets the Fortis Takedown Pin Set Apart
Fortis uses a drill-through design that hollows out material to keep weight down without giving up rigidity. The whole set tips the scale at just 0.34 oz combined, so you shave a little heft off the lower without any tradeoff in strength. They machine these from 17-4 stainless steel, which is a hard, corrosion-resistant grade that holds up to repeated takedown cycles and years of range time.
Fit and Tolerances on the Fortis Case Hardened Pins
These pins are held to a mil-spec size tolerance of .247 to .2485, so they drop into most standard AR-15 receivers without drama. Because the tolerances are tight and consistent, you get a snug, rattle-free fit that keeps your upper and lower mated up the way they should be. It's a straightforward drop-in job that works great for a fresh build or as a refresh for an older rifle whose pins have loosened up over time.
A Finish That Earns Its Keep
The case hardened treatment isn't just for looks. Along with that rose gold appearance, the process hardens the surface for added wear resistance, so the pins keep working smoothly through countless disassembly and reassembly cycles. Made in the USA, this set is a small part that makes a noticeable difference in both function and the overall character of your rifle.
Key Specifications
- Manufacturer: Fortis Manufacturing
- Manufacturer Part Number: PINS-TDPIV-CH
- UPC: 810103343290
- Finish: Rose Gold Case Hardened
- Material: 17-4 Stainless Steel
- Fitment: AR-15
- Size Tolerance: Mil-spec .247 to .2485
- Combined Weight: 0.34 oz
- Design: Drill-through (weight reducing)
- Country of Origin: Made in USA
What’s Included
- 1 Takedown pin (case hardened)
- 1 Pivot pin (case hardened)
Frequently Asked Questions
Will the Fortis takedown pin set fit my AR-15?
Yes, these pins are held to a mil-spec size tolerance of .247 to .2485, so they fit most standard AR-15 receivers. It's a drop-in swap that works for both new builds and replacing worn factory pins. If your lower is machined to spec, you should have no trouble.
Do the Fortis case hardened pins come with detents and springs?
No, this set includes just the takedown pin and pivot pin themselves. You'll reuse your existing detents and springs during installation, or grab a separate detent and spring kit if you're starting from a stripped lower. Fortis does offer a matching Enhanced Detent and Spring Kit if you want to complete the setup.
What does the case hardened finish actually do?
The case hardening gives the pins their distinctive rose gold appearance and hardens the surface for added wear resistance. That means the pins hold up better through repeated takedown and reassembly cycles. It's both a cosmetic upgrade and a functional one.
How is this different from the black nitride version?
The internals are the same, both are 17-4 stainless with the drill-through weight-saving design and identical fitment. The difference comes down to the finish. This case hardened version gives you that eye-catching rose gold color, while the nitride option is a subtle matte black.





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