The RDB (Rifle Downward-eject Bullpup) features a rotary bolt with a spring loaded ejector and an extractor facing down. The spent case is pulled backwards along the top of the magazine and then ejected through a vertical chute. The hammer is U-shaped and runs outside the chute and above the magazine. The bolt travel is longer than traditional designs but well within the ergonomic constraints of a rifle. Other advantages are gravity assisted ejection, higher bolt energy at feeding and a slower full auto rate (when applicable).
The RDB is built around a common steel skeleton formed by the receiver and barrel sub-assemblies. Bolt, bolt carrier, firing mechanism, ejector chute and bolt stop are identical for all variations. The short stroke gas operated piston is fully adjustable for different ammunitions and muzzle attachments.
- FAMILY: RDB Series
- MODEL: RDB Carbine
- TYPE: Rifle
- ACTION: Semi-Auto
- FINISH: Blue
- STOCK/FRAME: Synthetic Stock
- STOCK/GRIPS: Tan Synthetic
- WEIGHT: 7 lbs.
- CALIBER/GAUGE: 223 Rem | 5.56 NATO
- BARREL: 17.4″
- OVERALL LENGTH:27.4″
- ADDL INFO: Downward Facing Extractor
- ADDL INFO: Birdcage Flash Hider
- ADDL INFO: Fully Adjustable Piston
| Barrel Length | 17 |
|---|---|
| Caliber | 5.56 |
| Capacity | 30 |
| Condition | New in Box |
| Finish Per Color | Tan |
| Manufacturer | Kel-Tec |
| Manufacturer Part Number | RDBTAN |
| Model | RDB |
| Type | Modern Sporting Rifles |
| UPC | 640832005967 |
Frequently Asked Questions About This Product
Why buy Kel-Tec RDB Bullpup Carbine Tan .223 / 5.56 NATO 17.4-inch 30Rd 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 Bullpup Carbine Tan .223 / 5.56 NATO 17.4-inch 30Rd?
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 Bullpup Carbine Tan .223 / 5.56 NATO 17.4-inch 30Rd 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 Bullpup Carbine Tan .223 / 5.56 NATO 17.4-inch 30Rd
All firearms, including the Kel-Tec RDB Bullpup Carbine Tan .223 / 5.56 NATO 17.4-inch 30Rd, 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 Bullpup Carbine Tan .223 / 5.56 NATO 17.4-inch 30Rd 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.
![KELTEC SUB2000 GEN3 [BLK] 5.7x28MM SEMI AUTO](https://miamishooterssupply.com/wp-content/uploads/2025/05/66d0e4478a80ae08beca8726a9755e8ad112e6657079e-300x300.png)
