I will be installing KNS pins on another AR this week.
In my previous AR, I just pushed out factory trigger pin with KNS replacement pin and took less than 10 min to complete the entire install.
But I still don't know why there are 2 holes on the KNS trigger pin. Can some enlighten me and tell me what they are for? https://uploads.tapatalk-cdn.com/201...20c7fd595f.jpg
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