nostr:npub16e4gq4k2ax5h5a3vlt6395r9yvyaxurzd8zmxser5um2te066q6q0z7u0w nostr:npub1v62k8k90uekadxwy4qxppps7vw9cr2xe3chpu6avp46e0825ewesrg6c55 Remove the thumb!

Anybody know what kind of gun this is?. There's no ejection port on that side, so the charging handle is likely redundant on the side it's on.  My guess is a bottom ejecting shotgun, but I'm not very tacti-cool.