This is Reaper Defense 12 Gauge 2-3/4"" Knockout 40 gram Bean Bag Ammo.
The 40-gram beanbag 12-gauge shell could be a valuable deterrent when it comes to an unruly home invader, dangerous animal approaching, or for law enforcement riot control roles. These shells feature a 2.75"" standard length and can accurately launch the 40-gram bean bag at any reasonable range for a shotgun. This ammo comes packed in 3 rounds per blister pack.