Kel-Tec RDB Defender Tan 5.56 NATO 16.1″ Bullpup Rifle

The Kel-Tec RDB Defender is a tan bullpup semi-automatic rifle configured for .223 Rem/5.56 NATO with a 16.1-inch pencil-profile barrel. Its compact overall length and downward-ejection design provide a truly ambidextrous layout. The platform uses an adjustable gas piston system and a refined trigger to deliver controlled, consistent operation.

Key Specifications

• The caliber is .223 Rem / 5.56 NATO.
• The barrel measures 16.1 inches and is a pencil profile.
• The overall length is 27 inches for compact handling.
• The unloaded weight is approximately 6.7 lbs.
• The action is semi-automatic.
• The platform is ambidextrous with downward ejection and reversible controls.
• The rate of twist is 1:7.
• The stock is a collapsible polymer design.
• The barrel material is steel with an aluminium handguard noted in sources.
• The finish color is tan.

Compact, mechanically distinctive and designed for versatile use on the range or in field applications, the RDB Defender combines an ambidextrous bullpup layout with an adjustable gas system and a refined trigger for predictable handling. Its lightweight construction and pencil-profile barrel make it straightforward to carry and operate in confined or mobile scenarios while retaining the ballistic characteristics of the 5.56/.223 chambering.