This is a Kel-Tec known as the RDB-S chambered in 223 Remington, model RDBSGRN.
The RDB(TM) is the new definition of bullpup. Its downward shell ejection system eliminates the side ejection disadvantage of ordinary bullpups. The result is brass and gas that eject out of your line of sight making it a truly ambidextrous" high performance rifle for everyone. The RDB is also adjustable for a wide variety of ammunition and makes for an excellent suppressor host. It's definitely the bullpup done right.
Features:
Bullpup Design
Downward Shell Ejection
Ambidextrous
Excellent Suppressor Host
