Kel-Tec RDB Defender Features
The Kel-Tec RDB Defender is the result of taking the RDB and the RDB Survival and mashing them up to forge the perfect 5.56, light-duty, tactical bullpup. Its lightweight, comes standard with an aluminum, M-LOK handguard, collapsable stock and 16 pencil profile barrel. Defend your property, your community and your homeland with the most tactically versatile bullpup on the market with the RDB Defender.
Like no ordinary bullpup, the RDB Defender series of rifles redefines the platform. You’ve never experienced balance or a trigger quite like this in any other design. This Kel-Tec 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 5.56 NATO / .223 ballistic advantage in a very compact package that’s easy to manipulate for just about anyone.
Kel-Tec RDB Defender Specifications
- Brand: Kel-Tec
- Model: RDB
- Category: Tactical Rifles
- Series: Defender
- Caliber: 5.56x45mm NATO
- Capacity: 20+1
- Stock Material: Synthetic
- Action: Semi-Auto
- OAL: 27″
- Hand: Right
- Twist: 1:7″
- Gun Platform: Bullpup-Style
- Magazine Type: AR-15
- Grips: Green Polymer
- Receiver Material: Polymer
- Stock Description: Collapsible
- Barrel Length: 16.10″
- Receiver Finish: Green
- Weight: 6.70 lbs
- Stock Finish: Green
| Barrel Length | 16 |
|---|---|
| Caliber | 5.56 |
| Capacity | 20 |
| Condition | New in Box |
| Finish Per Color | OD Green |
| Manufacturer | Kel-Tec |
| Manufacturer Part Number | RDBDGRN |
| Model | RDB Defender |
| Type | Modern Sporting Rifles |
| UPC | 640832008098 |
Frequently Asked Questions About This Product
Why buy Kel-Tec RDB Defender OD Green 5.56 NATO 16" Barrel 20-Rounds from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy Kel-Tec RDB Defender OD Green 5.56 NATO 16" Barrel 20-Rounds?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is Kel-Tec RDB Defender OD Green 5.56 NATO 16" Barrel 20-Rounds available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: Modern Sporting Rifles, RIFLES.
What tags or features does this product have?
Key features and tags for this product include: Modern Sporting Rifles, RIFLES.
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
FFL Transfer & Firearms Laws for Kel-Tec RDB Defender OD Green 5.56 NATO 16" Barrel 20-Rounds
All firearms, including the Kel-Tec RDB Defender OD Green 5.56 NATO 16" Barrel 20-Rounds, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the Kel-Tec RDB Defender OD Green 5.56 NATO 16" Barrel 20-Rounds is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.

