This pump-action shotgun has a 9 shell capacity, and not just any old shells, but 12 gauge flechette. Flechette ammunition is less powerful than the standard buckshot you're used to, but it travels further and faster in a tighter grouping.
This gun is Surviv.io's first explosive gun. It is one of the most powerful guns in the game, having decent fire rate and deadly damage, as well as a large AOE. It is most commonly found in the Hatchet crate in an underground bunker in Squad mode, and was only found in the Into the Woods event.
Introduced in the "Turkey shoot" update, this semi-automatic shotgun is unique in the use of birdshot. Birdshot doubles the pellet count from the standard 9 pellet count, but sacrifice damage and accuracy in the process. This act as a cross between the MP220 and M870 as its damage potential power comes from firerate and pellet count, while having the tube magazine for allowing interruption of reloads of the M870.