US12680781 - Modular bullpup firearm

The patent describes a modular bullpup firearm that features a downward ejecting mechanism and a detachable magazine, with an inspection window aligned with the magazine well. It includes a movable charging handle that either blocks or aligns with the inspection window depending on its position.

Claim 1

1 . A downward ejecting bullpup firearm with a detachable magazine, comprising: a downward facing ejection port rearward of a magazine well; a top inspection window positioned substantially in line with the magazine well; a charging handle body including a rear portion and a forward portion and being movable between forward and rearward positions, the rearward portion blocking the inspection window when the charging handle body is in the forward position and the forward portion including a through-opening that substantially aligns with the inspection window when the charging handle body is in the rearward position. a downward facing ejection port rearward of a magazine well; a top inspection window positioned substantially in line with the magazine well; a charging handle body including a rear portion and a forward portion and being movable between forward and rearward positions, the rearward portion blocking the inspection window when the charging handle body is in the forward position and the forward portion including a through-opening that substantially aligns with the inspection window when the charging handle body is in the rearward position.

Google Patents

https://patents.google.com/patent/US12680781

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12680781