Customization with added performance is what its all about. Our new Impulse style threaded ball detents with custom star milling. We offer both the short and long (Vision side) length style ball detents. Our detents have a slightly higher spring rate. This helps prevent double feeding when using force feed hoppers. Yet. not that strong to create unwanted wear on the detents or bolt.Custom milled profileSlightly higher spring rate. Helps prevent double feeding when using force feed hoppers Comes in all our popular colors as shown Standard or Vision length