Anti Walk Pins?

[tabascoz28]

I've always replaced my pins with anti walks, I usually install the one with a clip at the end. On my last build I decided just to use captured pins with screws at the end. And they started to unscrew, I guess I should have loctited it.

I found my some old pins and they look dimpled/beveled to capture the springs inside. You're telling me that even with those channels, people's pins still walk out?

[justmedave]

I thought anti walk pins where only needed for cassette type drop in triggers? That's the only time I ever used them. Your correct on the slots on trigger pin capturing the spring. I had a pin walk out on me once when I installed the trigger spring backwards.

[hitdank]

Some people dont like the 1mm movement so they add 2mm of something sticking out.

[tabascoz28]

Cassette, ok that makes sense. Honestly I have a 10yo AR that I changed out the pins immediately cause you know, upgrades... I have a 3yo LR308 and a target/piston/stainless White Oak that both have Triggertechs so changed out the pins. This pistol is the only I went with these that use screws and I was supposed to lock them in once the gun was 100% but forgot over the years.

[homelessdude]

Locktite is your friend. Blue not red.

[Oceanbob]

This is question specific to ARs so you’re in the wrong section.

Try this

https://www.calguns.net/calgunforum/forumdisplay.php?f=67

[SkyHawk]

I thought anti walk pins where only needed for cassette type drop in triggers? That's the only time I ever used them.

That is the only time I use anti-walk pins. For regular trigger groups I just use standard pins.

[croue]

I went to the pins with the screw on caps after I got some special attention at the range when my pins partially walked out and I suddenly had an intermittent 4-round burst issue happening.


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[FeuerFrei]

I've used KNS pins to secure a drop in trigger and that's it.

If trigger pin walks then the hammer spring is weak or out of spec with the pin groves.

If the hammer pin walks then the spring inside the hammer is out of spec for similar reason.

*I always grease these pins during installation. Even my high mileage rifles have zero pin walk.

Maybe OP's pins are unscrewing due to being grabbed by the trigger/hammer because the pins are fatter than spec and spin out during operation.