Other than that, my primary grievance will be the bead-sighted guns. The barrel sits right on the barrel, which can generally cause you to appear to strike high. The beads aren’t excellent, however the ghost rings rule. You should argue it’s not a true bullpup, but dang, it’s shut adequate. https://glocknation.com/product/rock-island-traditional-single-shot-410-gauge-20-shotgun-ss-104/