Kel-Tec RDB Defender 5.56 NATO 16.1" Barrel 20+1 Black Bullpup

The Kel-Tec RDB Defender delivers bullpup rifle performance in a compact 5.56x45mm NATO platform designed for tactical applications. This downward-ejecting bullpup configuration provides ambidextrous operation while maintaining a full-length barrel in a shorter overall package.

What Makes This Different

The RDB's downward ejection system eliminates the brass-in-face problem common with traditional bullpup designs, allowing truly ambidextrous shooting. The 16.1-inch pencil profile barrel delivers rifle ballistics while keeping the overall length under 27 inches. Unlike conventional rifles, the bullpup design places the action behind the trigger group, creating superior balance and maneuverability in confined spaces.

Key Features

• Downward brass ejection enables ambidextrous operation without modification
• 16.1-inch pencil profile barrel optimizes velocity while reducing weight
• Collapsible synthetic stock adjusts for different shooting positions
• Polymer receiver construction reduces overall weight to approximately 6.7 pounds
• Standard AR-15 magazine compatibility accepts 20-round and higher capacity magazines
• Integrated Picatinny rail system accommodates optics and accessories
• Adjustable gas system allows tuning for various ammunition weights

The RDB Defender excels in close-quarters scenarios where maneuverability matters most. Law enforcement and security professionals appreciate the compact profile for vehicle operations and building clearing. The rifle maintains effective range capabilities out to 400 yards while offering superior handling in tight spaces compared to traditional carbines.

Technical Specs

• Caliber: 5.56x45mm NATO/.223 Remington
• Barrel Length: 16.1 inches, pencil profile
• Overall Length: Approximately 26.1 inches
• Weight: 6.7 pounds (unloaded)
• Magazine Capacity: 20+1 (accepts standard AR-15 magazines)
• Stock: Black synthetic collapsible design
• Receiver: Black polymer construction
• Grip: Black polymer pistol grip
• Action: Semi-automatic, gas-operated
• Safety: Cross-bolt type behind trigger guard
• Country of Origin: United States

The RDB Defender represents proven bullpup engineering adapted for modern tactical requirements. Its unique ejection system and compact dimensions make it suitable for applications where standard rifles prove cumbersome.