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Question about the Timney trigger and KNS anti walk pins.

This is a discussion on Question about the Timney trigger and KNS anti walk pins. within the Rifles forums, part of the Rifle & Shotgun Forum category; I have a new AR 556 with less then 350 rounds down the pipe and I just ordered the Timney 3lbs trigger ,now do I ...


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Old March 19th, 2017, 11:32 AM   #1
 
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Question about the Timney trigger and KNS anti walk pins.

I have a new AR 556 with less then 350 rounds down the pipe and I just ordered the Timney 3lbs trigger ,now do I need the KNS anti walk pins for the trigger or do the set screws that come with it lock down the factory pins keeping them contained?



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Old March 19th, 2017, 09:24 PM   #2
 
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Guess not lol
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Old March 20th, 2017, 04:09 AM   #3
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I am not sure I understand your question. However the standard ar trigger pins are .1554 and have grooves that the fire control group fits into when installed. The notch closest to the end of the pins goes towards the right side of the receiver or shall I say passenger side. If they are installed incorrectly, notch close to the left they can walk.
I have several sets of kns antiwalk trigger pins on ar rifles. They are mainly designed for receivers that the trigger pin holes are enlarged due to prolonged use and the stock trigger pins moving or walking during firing. This is more so seen on rifles that have full auto capability, and have been ran alot. The pins are designed to provide a captured setup that will not walk. They do that job really well. The .1555 pins are designed a bit larger for fit in receivers that are even more worn, or for certain triggers that require them like the rock river match 2 stage. They will be a tight fit in a .1554 hole, and can be used if desired for an extra tight fit. So from what I know you do not need the kns to make the timney work, however they are a good preventive maintenance tool, and cheap insurance that prevents issues. Just purchase the correct size listed by timney for use with their trigger.

Hope that answers your question.
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Old March 20th, 2017, 04:38 AM   #4
 
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good info
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Old March 20th, 2017, 11:04 AM   #5
 
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Not sure about the Timney, but Geissele recommends not using anti walk pins with their triggers.
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Old March 21st, 2017, 06:42 PM   #6
 
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I was told to do away with the stock ar 556 pins and use the KNS instead.
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