SOTAR NP3 Coated Cam Pin manufactured by Forward Controls Design.
 
Although FCD designed this to be an incredibly high quality piece, we turned our attention to it because of its coating.
 
NP3 offers an incredibly low coefficient of friction, and therefore by design causes a reduction of energy required to cam the bolt open.
 
This change, although minimal, can make sure the least amount of energy is lost during cycling to make sure the energy itself goes into making sure your BCG can complete its travel all the way to achieve bolt lock and load the next round to ensure reliable function in under-gassed or low pressure systems such as 300blk subsonics.