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  #1  
Old 07-20-2019, 9:25 PM
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Default Need Good Anti-walk Pins

Just had a regular trigger pin go flying out of a build. Are there any decent anti-walk pins sets under $20?
Thanks
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Old 07-20-2019, 9:34 PM
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I use these, $12 and shipping is free. Made in USA.

Note: For some reason there is a banner on the entire website about a shipping delay, not sure what that is about. They usually ship very fast.
https://ar15xtreme.com/store/product...patch-sku-734/

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Last edited by SkyHawk; 07-20-2019 at 9:37 PM..
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  #3  
Old 07-20-2019, 10:13 PM
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KNS Precision non-rotating hammer and trigger pins go for more than your target price of 20 bucks, but they do sell pin sizes for slightly oversized pin holes than the standard .154. The oversized pins are for trigger / hammer pin holes that have worn a bit or that have not been drilled to spec.

https://www.knsprecisioninc.com/prod...2-mod-3-nrthp/
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Old 07-20-2019, 10:22 PM
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Palmetto State Armory makes anti-walk pins they sell for $9.99

I use KNS Precision pins on all my rigs but they are a little more than 20 dollars.







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Old 07-20-2019, 11:41 PM
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Thanks for the suggestions guys. Now I'll see what's available locally
Appreciate it
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Old 07-21-2019, 1:42 AM
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Why are your pins walking?
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Old 07-21-2019, 2:44 AM
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Quote:
Originally Posted by eviioiive View Post
Why are your pins walking?

The FIRST question the OPS should've asked.

That said, KNS pins.
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Old 07-21-2019, 5:06 AM
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99.9% of the time the trigger pins walk because the hammer spring has been installed backwards..... The gun will still fire normally but the trigger pin will walk.

The KNS kit was designed primarily to keep the pins from ROTATING and wearing the pin holes in the frame.
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Last edited by vinconco; 07-21-2019 at 5:09 AM..
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  #9  
Old 07-21-2019, 5:18 AM
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Quote:
Originally Posted by vinconco View Post
99.9% of the time the trigger pins walk because the hammer spring has been installed backwards..... The gun will still fire normally but the trigger pin will walk.

The KNS kit was designed primarily to keep the pins from ROTATING and wearing the pin holes in the frame.
Also, if you have a drop in trigger group, the pins can walk out if the set screws loosen up.
I prefer Elftmann antiwalk pins. No little screws to deal with.

https://vitalarms.com/elftmann-trigg...anti-rotation/
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Old 07-21-2019, 6:38 AM
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I can't see how a properly installed trigger pin can "go flying out" of your receiver.
Maybe you should look into why that happened?
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Old 07-21-2019, 11:58 AM
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Quote:
Originally Posted by Flintlock Tom View Post
I can't see how a properly installed trigger pin can "go flying out" of your receiver.
Maybe you should look into why that happened?
Some DIT triggers have no pin retainers and no set screws to tension the unit against the pins, and are meant to be used with anti walk pins. Most mfgs will provide the pins if so but not all.

And when DIT trigger does use set screws to jam the unit against the pins, I don’t use them. Easier to just use the anti walk pins and less wear on the lower.
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Old 07-21-2019, 7:02 PM
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KNS anti walk pin is usually my first upgrade in AR lower.

Even on properly installed lower, I have felt pins protruding out a little bit on one side (still fully functional rifle) after a day at the range. so I added KNS kit
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Old 07-21-2019, 7:08 PM
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Quote:
Originally Posted by eviioiive View Post
Why are your pins walking?
Thatís the real question.
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Old 07-21-2019, 7:28 PM
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If you are running a standard mil std FCG, your hammer spring should hold your trigger pin in place due to being indexed on top of the trigger pin notches. The J-spring in the hammer should hold the hammer spring in place due being indexed in the middle pin notch.
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Old 07-21-2019, 9:01 PM
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CMC drop in trigger group
Pins just slide right through the front hole
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Old 07-21-2019, 9:05 PM
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Kns pins
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  #17  
Old 07-21-2019, 9:05 PM
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Quote:
Originally Posted by GW View Post
CMC drop in trigger group
Pins just slide right through the front hole
DIT, that is what I figured. Because who is still running mil-spec triggers

One other thing that can happen on even some non-DIT triggers is they have tiny clips that retain the pins but they can easily get lost. Geissele comes to mind. So I still use anti walk pins on those too, because eventually those little clips are going to disappear during some maintenance.

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Last edited by SkyHawk; 07-21-2019 at 9:16 PM..
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Old 07-22-2019, 7:58 AM
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Quote:
Originally Posted by SkyHawk View Post
Some DIT triggers have no pin retainers and no set screws to tension the unit against the pins, and are meant to be used with anti walk pins. Most mfgs will provide the pins if so but not all.

And when DIT trigger does use set screws to jam the unit against the pins, I donít use them. Easier to just use the anti walk pins and less wear on the lower.
I have a DIT group in my Stag lower that will double and triple if the set screws aren't snugged down tight. It was very entertaining the first time it happened. I use blue Locktite now. I also have KNS antiwalk pins in all my lowers because stuff happens, and it's worse if it happens when you really need it to not happen. And yes; I wear both a belt and suspenders.
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Old 07-22-2019, 8:15 AM
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^^^^ That does sound like fun!!
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