KNS Anti Rotation Pins

[Bad13Luck]

Thinking about getting a set of these for my Delaware lower build. Any one use these? All so how do I know what size to get?

Thanks

Badluck

 

[Gammon]

Thinking about getting a set of these for my Delaware lower build. Any one use these? All so how do I know what size to get?

Thanks

Badluck

I put a set of these in one of my ARs. After about 10,000 rounds the gun developed some trigger creep. I disassembled the trigger group and found that these pins were badly worn and scored. I replaced the KNS pins with a set of JPs which cured the problem. The JP pins are a superior product, available for a fraction of the cost of the KNS pins.