The Kel-Tec RDB (Rifle Downward Ejecting Bullpup) is a unique semi-automatic rifle manufactured by Kel-Tec CNC Industries. It is part of Kel-Tec’s bullpup rifle lineup and is known for its downward ejection system. Here are some key features of the Kel-Tec RDB:

1. Bullpup Design: The RDB features a bullpup design, which means the action and magazine are located behind the trigger group. This configuration allows for a shorter overall length while maintaining a full-length barrel for improved maneuverability.
2. Downward Ejection: The most distinctive feature of the Kel-Tec RDB is its downward ejection system. spent brass casings are ejected downward through a chute located behind the magazine well. This unique ejection pattern offers benefits such as reduced likelihood of ejection interfering with optics or getting in the way of left-handed shooters.
3. Semi-automatic Action: The RDB is a semi-automatic rifle, meaning it fires one round with each pull of the trigger and automatically chambers the next round.
4. Caliber Options: The Kel-Tec RDB is chambered in various calibers, including 5.56x45mm NATO and .223 Remington. This allows users to choose a caliber suitable for their needs, including target shooting, home defense, or recreational shooting.
5. Adjustable Gas System: The RDB features an adjustable gas system, which allows users to fine-tune the rifle’s operation based on their ammunition or shooting conditions. This can help optimize reliability and reduce recoil.
6. Ambidextrous Controls: The RDB includes ambidextrous features, such as ambidextrous safety selectors and charging handles, making it easier for both right-handed and left-handed shooters to operate.
7. Polymer Construction: The rifle is primarily constructed with polymer components, which help keep the weight down while maintaining durability and resistance to the elements.

The Kel-Tec RDB offers a unique and compact rifle platform with its bullpup design and downward ejection system. As with any firearm, it’s important to familiarize yourself with local laws and regulations regarding the purchase, ownership, and use of firearms, as they may vary depending on your jurisdiction. Always follow proper safety procedures and receive training in handling and operating firearms.