The Lee Ram Prime Priming Unit allows the reloader to prime on the up-stroke for a more sensitive feel and increased leverage. Included are easy to change punches for both large and small primers. FeaturesStart priming in seconds, nothing to adjustIncludes small and large priming assemblies, no tiny parts to fumble with or loseEffortless priming in the tightest pocketsUses any brand press shell holderSafe with all brands of primersWorks in any Lee Breech Lock press or 1 1/4-12 Breech Lock Update Kit or 1 1/2-12 Breech Lock Update Kit adapter