Expander Mandrel Organizer by Backfire

If you’ve ever spent more time looking for your expander mandrels than actually using them, you’re in good company. I’m Jim from Backfire, and after one too many "where the heck is my .22 mandrel?!" moments, I finally cracked—and built the organizer I always wanted.

This isn't just a mandrel holder—this is mandrel glory. Backfire’s organizer for expander mandrels holds up to 12 mandrels and one standard-size die, all in a compact, high-tech-looking unit that fits right on your bench without hogging space (4.5" wide x 3" tall). And get this: as you rotate the base, it pops the mandrels up like a tactical whack-a-mole, which is objectively satisfying and borderline addictive.

These are designed to work with expander mandrels made by 21st Century, but should fit any expander mandrel brand.  If it doesn't work for your mandrels, just email us with some pics and we'll alter the design to work with your mandrels and ship you out a fix.

Designed for the reloaders who want their bench to look as clean and dialed as their groupings, this is for folks who appreciate both function and form. It’s sleek. It’s sturdy. It’s absurdly over-engineered. And yes, it’s made by a guy who’s so obsessive about gear organization that he made a YouTube career out of it.

Get one before your bench turns into a scrapyard of mystery tools again.