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Standard trigger and hammer pins have one annoying habit: after enough rounds, they start creeping sideways out of the receiver. On a hard-run rifle or a polymer lower that can turn into a real headache, and nobody wants to discover a walking pin in the middle of a range day. Armaspec's Anti-Walk Trigger/Hammer Pins solve that with a set-screw design that clamps the pins in place and keeps them exactly where you put them.
These are standard .154 diameter pins, so they drop right into any mil-spec AR-15 or AR-10 lower without modification. The included set screws thread in and lock against the pins, holding them steady no matter how hard you run the gun. That anti-walk feature is especially worth it on short-barreled builds and polymer receivers, where standard pins tend to wear and work loose faster. A dab of thread locker on the screws is recommended so nothing backs out over time.
Machined from stainless steel to a precise tolerance, these pins are cut to avoid the slop and binding you sometimes get with cheaper hardware, which makes trigger installs go smoother. The raw stainless finish gives them a clean silver look that pairs nicely with matched lower parts. Everything is made in the USA and backed by Armaspec's lifetime warranty, so this is a buy-once part.
Installation is straightforward and the kit comes with the keys you need to tighten the set screws. Seat the pins, snug down the screws with the included wrench, add a touch of thread locker, and you're done. It's the kind of small upgrade that makes a noticeable difference in how confident you feel in your trigger group, whether you're building a fresh lower or refreshing an old workhorse.
Yes. These are standard .154 sized pins, which is the mil-spec diameter used in AR-15 and AR-10 lowers. They drop right in with no modification to the receiver needed.
They're compatible with most fire control groups built around standard .154 pins, including many drop-in triggers. If you're running a cassette-style drop-in, just confirm it uses .154 pins before ordering, since a handful of triggers use their own captured pin design.
Yes, a small amount of thread locker on the set screws is recommended. It keeps the screws from backing out under heavy use and vibration, which is the whole point of the anti-walk design. A little goes a long way here.
Standard pins can slowly migrate out of the receiver over lots of rounds, causing wear or malfunctions. Anti-walk pins use set screws to lock them in place, which is especially helpful on short-barreled builds and polymer lowers that tend to loosen faster.
| UPC | 810048491162 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | ARM136-SS |
| Length | 5.5000 |
| Color | Silver |
| Model | |
| Product Type | Trigger Pins |
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