The bullpup layout remains a compact solution for shooters who want rifle-length ballistics in a shorter overall package. The design choices behind the KELTEC RDB-20 focus on solving common bullpup drawbacks while retaining proven 5.56/223 performance for defense, range use, and duty applications.
KELTEC RDB-20
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Overview
The KELTEC RDB-20 is a semi-automatic bullpup chambered in 223 Rem/5.56 NATO with a 20.5″ barrel and a black nitride finish. At 6.9 lbs it strikes a balance between portability and stability. The full-length Picatinny rail lets operators mount red dots or magnified optics without compromise. Priced at $868.99, the RDB-20 brings distinctive engineering at an accessible price point. Shop this product to view the listing and purchase options; clicking will take you to our shop page where the retailer’s buy button is available.
Key Features
Downward Ejection System
The defining feature is the downward ejection through a vertical chute. A rotary bolt with a spring-loaded ejector and extractor facing down pulls the spent case back along the top of the magazine and drops it clear of the shooter’s face and optics—addressing the primary ergonomic issue with many bullpups.
Operating System and Construction
A short-stroke gas piston, adjustable for varying ammunition and muzzle devices, drives a robust bolt and receiver skeleton. The U-shaped hammer runs outside the chute above the magazine; bolt travel is longer than traditional designs but remains within ergonomic limits. These choices yield gravity-assisted ejection, improved feeding energy, and predictable cycling characteristics.
Handling, Ballistics, and Use Cases
The 20.5″ barrel maximizes velocity for 223 Rem/5.56 NATO rounds, improving effective range and terminal performance compared with shorter-barreled carbines. Textured polymer grip and forend provide a secure purchase for dynamic handling and follow-up shots. The platform suits home defense, patrol, and range training where compact overall length and rifle-ballistics are desired. Midway through evaluating fit and setup? View product details and pricing.
For buyers seeking a compact 5.56 semi-auto that addresses side-eject limitations, the KELTEC RDB-20 is a distinctive option. Check current availability or complete your purchase on our shop page: Check availability.
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People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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