Mossberg 500 & 590 universal mini shell adapter

This adapter lets your shotgun run both full-size shells and mini shells in the same tube, without turning your action into a jam simulator. Load what you’ve got, mix if you want, and keep the gun running like it should.

Printed in flexible TPU, it absorbs impact instead of cracking, plays nice with your internals, and installs without turning your receiver into a science project. No permanent mods, no commitment—drop it in and go.

More rounds when you want them. Full-power when you need it. Zero drama either way.

Because your shotgun shouldn’t care what you feed it.

Compatible with Mossberg 500 & 590

Shipping is possible but probably does not make much sense on its own. Look at my other stuff and combine for $18 flat shipping.