Kel-Tec RDB™-20 223 Rem 20.5″ Barrel


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SKU: KELRDB20BLACK Categories: , Tag:

Like no ordinary bullpup, the RDB series of rifles redefines the platform. You’ve never experienced balance or a trigger quite like this in any other design. The RDB is completely ambidextrous due to its patented downward-ejection, magazine catch/release placement, intuitive safety and reversible operating handle. The RDB series of bullpups delivers a .223 ballistic advantage in a very compact package that’s easy to manipulate for just about anyone.


  • Downward Ejection
    • This unrivaled design sends spent brass downward through the stock, behind the magwell making it a truly ambidextrous bullpup rifle. Gone are the days of hot gas & brass flying out of a side-ejection port… you’re welcome, southpaws.
  • Unparalled Trigger System
    • Bullpup triggers are notoriously bad, so we tackled that issue head on and won. This trigger is incredibly smooth, with a nice take-up and clean break. Combined with a 1:7 twist barrel, all RDB models offer excellent accuracy.
  • Adjustable Gas System
    • All of the RDB models operate off of the same adjustable gas piston system. This feature allows the user to tailor the bolt carrier speed to eliminate excessive recoil while running a suppressor and ensure reliability for various loads.


Action Semi-auto Operation Short Stroke Adjustable Gas, Rotary Bolt
Buttstock Bullpup Configuration Length of Pull Fixed
Comb Fixed Magazine Type STANAG 4173
Magazine Capacity 5 Trigger Pull (lbs; N) 4.5-5.5; 20-25
Forend 6 O’Clock Picatinny Rail; Hook Sling Slots Optic Interface Pre-installed Picatinny Rail
Rear Sight None Front Sight None
Barrel Length (mm) 521 Barrel Material AISI 4140 Steel
Barrel Finish Salt Bath Nitride QPQ Twist (in; mm) Right Hand 1:7; 1:178
Grooves 6 Length (in; mm) 30.6; 777
Empty Weight (lbs; kg) 7.2; 3.3

Additional Information:

Product Number RDB-20BLACK


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Weight 4.7 kg
Dimensions 94.5 × 26.3 × 9.8 cm

223 Remington



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