They are standard 12 gauge 870 shotguns, that can fire any 12 gauge round in the inventory. Which is why they have yellow, orange or other highly visible, easily identifiable stocks, to let folks know what the gun is intended to be used for and prevent buckshot or slugs from being put into the wrong shotgun.
Many (most?) have probably fired fewer than 200-250 rounds. They just aren’t trained with often, nor are they fired on patrol much. $299 is a great deal, IMHO.
We had them mounted in the trunks, so guys knew they were specifically getting out the less lethal shotgun and not a regular long arm.
Originally they were called “less than lethal”, but unintended (rare) deaths occurred, so the liability lawyers switched the name. The original “ravioli” style beanbag rounds were made of canvas like material sandwiching #9 birdshot. These had instances where they hit someone on the edge with its sewn seam rather than flat, and that situation led to penetrating injuries/deaths. The “sock” style beanbags are made of what looks like cotton sock material. These have no hard seam and usually have a little tail, so they fly nose forward and moosh out more consistently to prevent penetration.
They can be very effective on some folks. I have used them myself, and been on numerous other calls, where the use ended the situation and everyone survived. I have also seen them be ineffective, nothing more than a nuisance. Like tasers, batons, OC spray, etc., nothing works on everyone, all the time, they are just another tool in the quiver to solve an issue.
(If I bought one, I would immediately swap out stocks with something other than a “less lethal” marked stock, IF the gun is going to be used with anything other than less lethal rounds.)
Congratulations on a great buy!
Stay safe.