The Kel-Tec RDB in .223 Rem/5.56 NATO (brand part no. RDB20GRN) is a semi-automatic bullpup rifle built around a 20-inch, threaded 1/2×28 barrel with a 1-in-7-inch twist, finished in black with a black-and-green grip. KelTec equips the RDB with a downward ejection port, an adjustable gas system, an ambidextrous magazine release, and a light, 4-pound trigger pull, built with a black polymer stock and a Mil-Spec Picatinny rail. Among semi-automatic rifles in the semi-auto rifles category, the RDB favors shooters who want a light trigger pull and AR-15 magazine compatibility in a 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 threaded 20-inch barrel, threaded 1/2×28.
• Feeds from a magazine with a 10+1 capacity, or any AR-15-compatible magazine.
• Equipped with an adjustable gas system.
• Trigger pull is a light 4 pounds.
• Fitted with an ambidextrous magazine release.
• Overall length is 36.85 inches.
• Ships at approximately 9.75 pounds.

Frequently Asked Questions

What magazines does this rifle accept? Any AR-15-compatible magazine.

How light is the trigger pull? Approximately 4 pounds, refined for a bullpup design.

Is the barrel threaded? Yes, threaded 1/2×28.

Buy the Kel-Tec RDB Bullpup Rifle, Green Grip

A light trigger pull and AR-15 magazine compatibility in a bullpup is exactly what the RDB delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.