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IA Iron River Armory

Kel-Tec RDB20 5.56 NATO 20in Tan Bullpup

SKUCSSI|KTRDB20TAN Conditionnew CategorySemi Auto Rifles
$904.90
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About this product

The Kel-Tec RDB20 is a downward-ejecting bullpup rifle built around a 20 inch barrel and chambered for .223 Rem / 5.56 NATO. Its bullpup layout places the action behind the trigger so shooters retain a full-length barrel in a compact overall package. The design is fully ambidextrous with downward ejection and accepts standard AR-15 magazines. An adjustable gas piston system helps tailor operation for different loads and suppressor use.

Key Specifications

  • The rifle is chambered for .223 Rem / 5.56 NATO.
  • It uses a Semi-Automatic action.
  • The barrel measures 20 inches.
  • The barrel twist is 1:7″.
  • The rifle accepts 20-round magazines and is compatible with standard AR-15 magazines.
  • The stock and furniture are tan synthetic.
  • The platform features downward ejection for true ambidextrous operation.
  • It is equipped with a fully adjustable piston gas system.
  • The muzzle is threaded 1/2×28 for common accessories.

Designed for shooters who value compact ergonomics without sacrificing a full-length barrel, the RDB20 pairs practical ambidextrous controls with an adaptable gas system and AR-15 magazine compatibility. Its layout and features make it well suited for precision-focused range work and other sporting applications where a balance of accuracy and compact handling is desired.

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Specs at a glance

Kel-Tec RDB20 5.56 NATO 20i… SPECS AT A GLANCE 20 inches SIZE
Editorial diagram — measurements verified during testing.
Sources & methodology. Editorial review and rating by Travis Caldwell based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$904.90