Kel-Tec RDB20 5.56mm Bullpup Rifle, 20" Black

The Kel-Tec RDB: A Bullpup Reimagined

Kel-Tec's RDB represents a fundamental rethinking of the bullpup rifle. By solving the traditional problems that have plagued bullpup designs for decades, the RDB delivers a genuinely ambidextrous, high-performance rifle that works equally well for right- and left-handed shooters.

Downward Ejection: The Game Changer

The RDB's revolutionary downward ejection system sends spent brass through the stock and behind the magazine well, completely out of your line of sight. This eliminates the hot gas and flying casings that make traditional side-ejecting bullpups uncomfortable for southpaw shooters. You get a truly ambidextrous rifle without compromise.

Trigger and Accuracy

Bullpup triggers have a notorious reputation for being poor. Kel-Tec addressed this head-on with a smooth, well-designed trigger featuring excellent take-up and a clean break. Combined with the 1:7 twist barrel, the RDB delivers the accuracy you expect from a modern rifle.

Adjustable Gas System

The RDB operates via an adjustable gas piston system that allows you to tailor bolt carrier speed to your needs. Whether you're running a suppressor, shooting various ammunition loads, or simply want to manage recoil, this system ensures reliability and performance.

Specifications and Features

• Caliber: .223 Remington / 5.56x45mm NATO
• Barrel Length: 20 inches with 1:7 twist rate
• Overall Length: 27.3 inches (compact bullpup profile)
• Weight: 6.7 pounds unloaded
• Magazine Capacity: 20 rounds (accepts any AR-15 compatible magazine)
• Trigger Pull: 4.5–5.5 pounds
• Finish: Black metal with black polymer stock
• Controls: Fully ambidextrous magazine release and safety
• Rails: Two integral MIL-STD-1913 Picatinny rails—one above the barrel, one on the handguard
• Muzzle: 1/2x28 threaded for suppressors and muzzle devices
• Ejection: Downward through stock

Handling and Balance

The RDB maintains its center of gravity directly over the grip assembly, resulting in a well-balanced rifle that's easy to handle and control. Multiple sling attachment points accommodate hook-style swivels for your preferred carry method.

Includes one 20-round magazine. Scope not included.