Fresnel
Did y'all miss the Knoxx Sidewinder?

Took a five-round stick or a ten-round offset drum. Fit on the 500/590. They were going to make one for the 870, but they got bought by Blackhawk! and the project was scrapped and the existing model was discontinued. They run a pretty penny now, but are still pretty common on Gunbroker.

Took a five-round stick or a ten-round offset drum. Fit on the 500/590. They were going to make one for the 870, but they got bought by Blackhawk! and the project was scrapped and the existing model was discontinued. They run a pretty penny now, but are still pretty common on Gunbroker.
This would've been great if it was universalized and easy to install and remove or could work with the shotgun's tubular capacity.
It really sucks that it's been scrapped.