The KelTec RDB Defender (KelTec part no. RDBDTAN) is a semi-automatic bullpup rifle chambered in .223 Remington/5.56 NATO, built to pack a full-length barrel into a compact overall footprint by placing the action behind the trigger. KelTec finishes this Defender variant in Tan and keeps the RDB’s signature forward ejection system, which routes spent brass out the front of the rifle so it stays clear of the shooter’s face regardless of shooting hand. The bullpup layout gives this rifle rifle-length ballistics in a package short enough for maneuvering in tight spaces.

Key Specifications

• Chambered in .223 Remington/5.56 NATO.
• Bullpup layout places the action behind the trigger for a compact overall length.
• Barrel measures 16.1 inches, giving rifle-length ballistics in a short package.
• Magazine capacity of 20 rounds standard.
• Forward ejection routes spent brass out the front, clear of the shooter’s face.
• Overall length of 37.05 inches, short for a rifle with a 16.1-inch barrel.
• Finished in Tan for this Defender variant.
• Accepts standard AR-15/M16 STANAG magazines, giving owners wide magazine availability.
• Runs a single-stage trigger with a lighter pull than most mil-spec AR triggers.

Frequently Asked Questions

What does bullpup mean for this rifle? The action sits behind the trigger, shortening the overall rifle without shortening the barrel.

Where does spent brass eject? Forward, out the front of the rifle, keeping it clear of the shooter’s face regardless of shooting hand.

What is the magazine capacity? 20 rounds standard.

Buy the KelTec RDB Defender Bullpup Rifle 5.56 NATO 16.1-inch Tan

Order the KelTec RDB Defender from our KelTec lineup of rifles for fast, insured shipping to your FFL from our Lubbock, Texas gun shop.