Description
Every AR builder eventually hits the point where they're chasing ounces, and the pins that hold your upper and lower together are an easy place to trim some weight. Strike Industries machines these Ultra Light Pivot and Takedown Pins from billet 7075 aluminum, which is the same aircraft grade material used in plenty of high end receivers and components. You get real strength without the mass of the standard steel pins that came in your parts kit, and the pair together tips the scale at right around 0.20 ounces net.
What Sets the Ultra Light Pins Apart
Beyond the weight savings, these pins have an extended grasping surface that makes a bigger difference than you'd expect. Pushing out a captured takedown pin with your thumb is a lot easier when there's more surface to grab, especially with gloves on or in cold weather. The pivot pin measures 1.31 inches and the takedown pin comes in at 1.08 inches, matching the standard dimensions so they drop right into AR-15 and M4 style lowers, including most billet receivers.
The FDE Finish on These Takedown Pins
The Flat Dark Earth finish is anodized and holds up well to handling and wear. Worth knowing ahead of time: because of how the anodizing process works, the FDE can lean a touch more toward a warm bronze tone than a flat tan, and shades can vary slightly from batch to batch. Folks running FDE furniture and accessories generally find it blends in nicely and gives the build a finished, custom look.
Getting the Ultra Light Pins Dialed In
Installation is a straightforward swap using your existing detent and spring hardware. If a pin feels tighter than you like when pushing it through, that usually traces back to the detent spring rather than the pin itself, and trimming a coil or two off the spring sorts it out. A snug fit is a feature here, since the last thing you want is a pin walking loose while you're running the gun. These are a clean, affordable upgrade whether you're finishing a fresh build or refreshing an older one.
Key Specifications
- Manufacturer: Strike Industries
- Manufacturer Part Number: SI-AR-UL-EPTP-FDE
- Model: Ultra Light Pivot/Takedown Pins
- UPC: 708747546149
- Material: Billet 7075 Aircraft Grade Aluminum
- Finish: Flat Dark Earth (FDE) Anodized
- Pivot Pin Length: 1.31 in
- Takedown Pin Length: 1.08 in
- Diameter: 0.246 in
- Weight: 0.20 oz net
- Fitment: AR-15 / M4 style lowers
- Type: Mil-Spec
- Product Type: Takedown/Pivot Pins
What’s Included
- 1 x Ultra Light Pivot Pin (FDE)
- 1 x Ultra Light Takedown Pin (FDE)
Frequently Asked Questions
Will these Ultra Light pins fit my AR-15?
Yes, they're machined to standard AR-15 and M4 dimensions and work as a direct replacement in standard and most billet lower receivers. They use your existing detent pins and springs, so no extra parts are needed. Note that they're built for AR-15 platforms, not larger AR-10 style rifles.
Are these takedown pins really lighter than steel?
They are. Machined from 7075 aluminum, the pair weighs around 0.20 ounces net compared to the heavier steel pins in a typical parts kit. It's a small savings on its own, but it adds up when you're building the whole rifle around cutting weight.
Is the FDE color a true flat dark earth?
The anodized FDE tends to run a bit warmer and slightly more bronze than a flat tan, and shades can vary a little between production batches. Most builders find it pairs well with other FDE furniture and accessories. If exact color matching matters, it's worth setting your expectations toward that warmer tone.
Why do the pins feel tight when I install them?
A snug fit is normal and generally comes down to the detent spring tension rather than the pin itself. If they're tighter than you'd like, trimming a coil or two off the detent spring usually loosens things up. A firm fit is a good thing since it keeps the pins from working loose while shooting.




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