ASF small parts kit consists of the following:
1 KNS detent (stainless steel, black nitrided)
1 Safety detent / ejector spring
4 ASF roll pins (420 stainless steel, 5/64" x 7/16" with 800lb breaking strength)
ASF (Ambidextrous Selector, Forward Controls) ships with 4 roll pins, ASF small parts kit provides all the small parts ASF ships with, as we consider roll pins and detents to be wear items. Detents wear, and roll pins can't always be re-used.
ASF small parts kit is best purchased with an ASF, or other items so we can keep the cost down (without incorporating shipping into the price).