Kel‑Tec RDB Bullpup Rifle — 5.56 NATO, Black

The Kel‑Tec RDB is a compact, downward‑ejecting bullpup semi‑automatic rifle chambered for .223 Rem/5.56 NATO. Its bullpup layout places the center of gravity over the grip for balanced handling, and the downward ejection system keeps spent cases out of the shooter's line of sight. The design includes fully ambidextrous controls and an adjustable gas piston system for reliable operation with a variety of loads.

Key Specifications

• The caliber is .223 Rem/5.56 NATO.
• The action is Semi‑Automatic.
• The rifle uses a downward ejection system to route spent cases away from the shooter.
• The stock is a fixed bullpup synthetic design for a compact platform.
• The barrel twist rate is 1:7".
• It features an adjustable gas piston system to tune bolt carrier speed for different loads and suppressor use.
• Two integral MIL‑STD‑1913 Picatinny rails provide mounting points for optics and accessories.
• The muzzle includes a birdcage flash hider.
• The rifle accepts AR‑15 style magazines.
• The package includes one magazine and a black finish/black synthetic furniture.

With its compact bullpup footprint, downward ejection, and adjustable gas system, the RDB is tailored for shooters who want a high‑functioning, ambidextrous modern sporting rifle in a shorter overall package. Its integrated rails and modular controls make it adaptable for a range of practical uses where a balanced, reliably operating platform is required.