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KEL-TEC RDB for Sale
Browse kel-tec rdb listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
The KEL-TEC RDB is a bullpup rifle introduced by KEL-TEC in 2014, known for its innovative downward eject system. Its design prioritizes compactness and ease of operation for both right and left-handed shooters. Currently, it holds a niche position as a modern, lightweight bullpup in the tactical rifle market.
Why It's a Top Choice
- Unique downward ejection for ambidextrous use
- Compact bullpup layout maximizes barrel length
- Lightweight polymer frame enhances portability
- Integrates top Picatinny rail for optics
- Easy access magazine release for quick reloads
Key Variants
RDB — General purpose bullpup for tactical and sport shooters.
RDB-C — Compact version ideal for close-quarters and personal defense.
Competitor Comparison Table
| Feature | RDB | FN PS90 | IWI Tavor X95 |
|---|---|---|---|
| MSRP | $1,400 approx. | $2,200 approx. | $1,900 approx. |
| Capacity/Size | 30 rounds, 16.25\" barrel | 50 rounds, 16.5\" barrel | 30 rounds, 16\" barrel |
| Weight | 6.94 lbs | 6.6 lbs | 6.8 lbs |
| Optics-Ready | Top Picatinny rail | Integrated optic | Top rail and M-LOK |
| Trigger Type | Two-stage electronic | Double-action | Single-stage |
| Notable Pro | Ambidextrous downward eject | High capacity, compact design | Balanced ergonomic bullpup |
| Notable Con | Limited aftermarket support | Proprietary magazines | Heavier weight |
Best Use Cases
- Tactical applications requiring compact rifles
- Home defense with ambidextrous ejection
- Range training with lightweight handling
- Recreational and competitive shooting
FAQs
Can I use standard AR magazines with the KEL-TEC RDB?
No, the RDB uses proprietary 5.56 NATO magazines designed specifically for its bullpup platform.
What is the ejection system on the RDB?
The RDB ejects spent cartridges downward, enabling true ambidextrous use without brass kicking near the face.
How does the RDB compare in weight to other bullpups?
At approximately 6.94 pounds, it is competitively lightweight among bullpup rifles in its class.


