This family of parts are used on a back up iron sight. These back up iron sights are mounted on several different military weapons. We have been manufacturing these parts by the hundreds of thousands. Over the years we have managed to keep the same price despite external cost increases for processing and materials. Our customer is locked into fixed contracts so we do our best the make sure they can meet their commitments and still make money. At Fast Lane we are very competitive producing high volume parts and assemblies.