Kel-Tec RDB 5.56 NATO 17.3″ Tan Bullpup Rifle

About this product

The Kel-Tec RDB is a compact, downward‑ejecting bullpup rifle designed to deliver a full 5.56/.223 ballistic profile in a shorter overall package. This variant ships with a tan synthetic stock and a pencil‑profile, threaded barrel suitable for a variety of accessory options. The rifle is fully ambidextrous by design, featuring a downward ejection system, ambidextrous safety, and reversible operating handle to accommodate both right‑ and left‑handed users.

Key Specifications

• The rifle is chambered in .223 Rem/5.56 NATO.
• The barrel measures 17.3 inches and features a pencil profile.
• The action is Semi-Auto.
• The unloaded weight is approximately 6.7 lbs.
• The overall length is about 27.3 inches.
• The twist rate is 1:7.
• The stock is tan synthetic with an integral forend and M-LOK/Picatinny accessory provision.
• The rifle uses AR‑15 pattern magazines and accepts standard AR‑15 style magazines.
• Operating system includes an adjustable gas piston to tune performance with suppressors or varied loads.
• Featured design includes downward ejection for true ambidextrous operation.

Practical and compact, the RDB blends modern materials and an innovative downward‑ejection layout to offer an ambidextrous, suppressor‑friendly platform in a reduced footprint. Its adjustable gas system and 1:7 twist barrel suit a wide range of 5.56/.223 loads, while the synthetic tan stock and integrated railing provide a stable mounting platform for optics and accessories. The RDB is a purposeful choice for shooters seeking a high‑functioning bullpup that balances compact handling with full‑length ballistic performance.