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When your AR-10's firing pin starts showing wear or you just want a solid spare on the bench, this Armaspec unit is a smart pick. It's machined from 17-4 stainless steel and heat treated to H900 hardness, which gives it the strength to take repeated primer strikes without deforming or peening at the tip. That combination of a corrosion-resistant stainless base and hardened surface means it holds up through a lot of rounds and shrugs off the moisture and fouling that tend to chew up lesser parts.
17-4 stainless is a precipitation-hardened steel that's a favorite for high-stress components because it balances toughness, hardness, and rust resistance. Armaspec runs theirs to the H900 condition, which is the hardest and highest-strength temper in the family. In plain terms, that translates to reliable ignition strike after strike and a part that keeps its dimensions instead of mushrooming over time. The silver stainless finish also makes it easy to spot wear or debris during a cleaning.
This is a direct replacement pin sized for standard AR-10 pattern bolt carrier groups. It fits right into the bolt the same way your factory pin does and is retained by the firing pin retaining pin, so swapping it out is a quick job with basic tools. Anyone who's field stripped an AR platform has done this before, and if you haven't, it's a five-minute task once the bolt is out of the carrier.
Whether you're an armorer keeping spares stocked, a builder putting together a fresh AR-10, or someone who just wants peace of mind that the ignition side of the rifle is squared away, this firing pin covers the job without any fuss. Armaspec has a solid reputation for their internals and recoil components, and this pin fits right in line with that.
It's built to standard AR-10 pattern specs, so it drops into most AR10-type bolt carrier groups the same way your factory pin does. If you're running a proprietary or oddball platform, double-check your bolt dimensions before ordering. For typical AR-10 builds and mil-spec pattern bolts, it's a direct fit.
17-4 is a precipitation-hardened stainless known for high strength and corrosion resistance, and H900 is the hardest temper in that family. That means the pin resists peening at the tip and keeps its shape through a lot of primer strikes. It also holds up better against moisture and fouling than a bare steel pin.
Not at all. Once you've pulled the bolt from the carrier and removed the firing pin retaining pin, the old pin slides out and this one drops right in. It's a quick job with basic tools that most folks can knock out in a few minutes.
It's a good idea. Firing pins are a wear item, and having a backup means you're not sidelined if one ever cracks or wears out. This one makes a smart addition to any AR-10 spare parts kit or armorer's bench.
| UPC | 810048491643 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | ARM683-SS |
| Color | Silver |
| Model |
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