Lee ACP/APP Decapper For Undersized Flash Holes

The Lee ACP/APP Decapper for Undersized Flash Holes is a specialized reloading tool designed for shooters who encounter casings with flash hole restrictions or dimensional inconsistencies. This precision instrument addresses a common problem in ammunition reloading: casings that don't seat primers reliably due to undersized or obstructed flash holes. Whether you're processing military surplus brass, range-picked mixed lots, or specialty ammunition components, this decapper removes spent primers safely and efficiently.

Built by Lee Precision—a name synonymous with reliable reloading equipment—this decapper features precision engineering that accommodates the unique geometry of undersized flash holes without forcing or damaging case necks. The tool operates through straightforward mechanical action, allowing you to remove primers that would otherwise jam or resist removal in standard decapping equipment. Its compact 4-inch design integrates seamlessly into any reloading bench setup, and the modest weight makes it portable for field operations or mobile reloading stations.

Law enforcement reloaders, competition shooters, and military armorers benefit most from this specialized tool when processing ACP (Automatic Colt Pistol) and APP brass or any casings with non-standard flash hole dimensions. Handloaders who work with mixed brass will find this decapper invaluable for ensuring consistent, repeatable results across batches of problem casings. With its focused design geometry, this tool is essential for anyone looking to enhance their reloading efficiency.