The Kel-Tec RDB in .223 Rem/5.56 NATO (brand part no. RDB20BLK) is a semi-automatic bullpup rifle built around a 20-inch barrel with a 1-in-7-inch twist, finished in black with a black grip. KelTec designs the RDB with downward ejection that sends spent brass through the stock behind the magwell for truly ambidextrous operation, an adjustable gas system, and a refined bullpup trigger. Among semi-automatic rifles in the semi-auto rifles category, the RDB favors shooters who want a full 20-inch barrel in a compact, truly ambidextrous bullpup.

Key Specifications

• Chambered in .223 Rem/5.56 NATO.
• Rate of twist is 1-in-7-inch.
• Operates as a semi-automatic bullpup rifle with downward ejection.
• Features a 20-inch barrel.
• Feeds from a magazine with a 20-round capacity.
• Equipped with an adjustable gas system.
• Ships optic-ready.
• Overall length is 36.85 inches.
• Equipped with an ambidextrous safety.
• Ships at approximately 9.9 pounds.

Frequently Asked Questions

How does this bullpup eject spent brass? Downward through the stock behind the magwell, making it truly ambidextrous for left- and right-handed shooters.

Is the gas system adjustable? Yes, an adjustable gas system is fitted.

What is the magazine capacity? 20 rounds in .223/5.56.

Buy the Kel-Tec RDB Bullpup Rifle, 20-Inch

A full 20-inch barrel in a compact, truly ambidextrous bullpup is exactly what the RDB delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.