Kel-Tec RDB20 5.56 NATO (.223 Rem) 20in Green 20rd

The Kel-Tec RDB20 is a bullpup-configured semi-automatic rifle chambered for .223 Rem / 5.56 NATO. It uses a patented downward-ejection system for true ambidextrous operation and accepts AR-15 compatible magazines. The 20-inch pencil-profile barrel and adjustable gas system make it suitable for a range of sporting and target shooting applications.

Key Specifications

• Chambered in .223 Rem / 5.56 NATO for common AR-15 pattern ammunition.
• The barrel measures 20 inches with a pencil profile.
• Magazine capacity is 20 rounds and accepts AR-15 compatible magazines.
• Action type is semi-automatic for standard sporting use.
• Twist rate is 1:7 for stabilization of a wide range of bullet weights.
• Stock material and finish are OD green synthetic for durable, weather-resistant handling.
• Features a downward ejection system for ambidextrous operation and reduced line-of-sight ejection.
• Includes a 1913 Mil-Spec Picatinny rail for optics and accessories.
• Equipped with an adjustable gas system to tune for different ammunition and loads.
• The trigger pull is approximately 4 lbs.

The RDB20 pairs compact bullpup ergonomics with AR-15 magazine compatibility and practical features like downward ejection and a full-length Picatinny rail. Its configuration suits range work and general sporting use where compact handling and ambidextrous controls are valued, while the adjustable gas system and 1:7 twist deliver flexibility across common 5.56/.223 loads.