Kel-Tec RDB-C 5.56 NATO 10rd Bullpup Rifle

The Kel-Tec RDB-C is a bullpup semi-automatic rifle engineered around a downward-ejection system that delivers true ambidexterity and a compact handling profile. Chambered for .223 Rem/5.56 NATO, this California-compliant configuration pairs a fixed polymer stock with an adjustable gas system suitable for a range of loads. The platform is optic-ready and designed to function as a compact hunting and utility rifle with suppressor-friendly characteristics.

Key Specifications

• Chambering is .223 Rem/5.56 NATO.
• The model is RDB-C.
• Manufacturer is Kel-Tec CNC Inc..
• Capacity is 10 rounds in the CA-compliant configuration.
• Action type is Semi-Auto.
• Stock is a fixed polymer bullpup.
• Rate of twist is 1-in-7.
• Sights: None; optic ready.
• Key features include a downward-facing extractor (downward ejection).
• Operating system includes a fully adjustable piston gas system.

Built for shooters who prioritize compact handling and ambidextrous operation, the RDB-C offers a practical bullpup layout with modern features such as an adjustable gas system and an optic-ready top rail. Its downward-ejection design and polymer stock make it a versatile, user-focused platform suitable for hunting, range use, and other lawful shooting applications where a compact, balanced rifle is preferred.