MEC is known for making high-quality, long-lasting shotshell presses that work great for beginning shotshell reloaders to the most advanced high-volume shotshell reloader. The Large Capacity Primer Feed Kit is perfect for the high volume reloader looking for a way to maximize their reloading sessions. This kit holds more than 200 primers and features a self-lubricating tray that pivots flat for easy filling. Fits progressive MEC shot shell loaders.Specifications and Features:Don't know what part you need to order for your MEC, check your owner's manual. If you do not have an owner s manual you can visit their website: www.mecoutdoors.com and download one.