Although there are different charge bars manufactured by this company the MEC Single Stage Lead Shot Charge Bar is among the more popular. This quick change charge bar is constructed from anodized aluminum which guarantees it can withstand harsh conditions. This bar is made for removable powder charge bushings needed to adjust charges of powder with the bushings being sold separately.Designed for MEC single-stage shotshell presses this bar includes a soft insert that prevents shearing hard shot or larger shot. Keep in mind that steel shot and lead shot charge bars are not intended to be interchanged.