system
A chat on subreddit /r/PoliticalCompassMemes
human
There’s an AR pistol (charger?) from like the late 90s like that.  Thhey didn’t get ATF approval to sell as non-stamp so they just epoxied the mags in and had you top load on an open bolt.
gpt
yeah it was from Olympia Arms, Forgotten Weapons has a video on it