Kel-Tec RDB Hunter .223 Rem/5.56 NATO AR-15 Rifle - RDBC20BLK
- Caliber-Gauge:
- 223 Remington / 5.56 NATO
The Kel-Tec RDB Hunter is a unique .223 Rem/5.56 NATO rifle that breaks from the bullpup design formula to deliver a traditional hunting profile with modern ergonomics. Built on AR-15 platform compatibility, it pairs a 20.5" threaded barrel with a conventional stock assembly, making it an unconventional choice for hunters and shooters who want something different without sacrificing familiar controls or magazine interchangeability.
At 6.9 lbs unloaded and 30.4" overall, the RDB Hunter strikes a balance between maneuverability and sight radius. The sleek forend houses a bipod mount (swivel stud compatible), and the trigger breaks at 4–6 lbs with a cross-bolt safety positioned where hunting-rifle shooters expect it. Its 1:7" twist rate handles standard .223 and 5.56 NATO loads, and since it takes any AR-15 magazine, you're not locked into proprietary feeds—10-round or otherwise.
This is a rifle for hunters and range shooters who appreciate unconventional design done right: precision controls, handy weight, and a traditional handling profile in a platform most modern shooters already understand. Whether you're hunting varmint or working steel, the RDB Hunter deserves a closer look if you've tired of cookie-cutter AR layouts.
Key Features
- Traditional stock assembly with hunting-rifle ergonomics and cross-bolt safety
- 20.5" threaded barrel for velocity and suppressor-ready capability
- AR-15 magazine compatible—use standard 10-round or any aftermarket magazine
- Integrated bipod mount (swivel stud) on sleek, ergonomic forend
- Light and handy at 6.9 lbs unloaded; 30.4" overall length
- 1:7" twist rate suitable for .223 Rem and 5.56 NATO ammunition
- Factory trigger pull 4–6 lbs
Specifications
| Caliber | .223 Rem / 5.56 NATO |
| Barrel Length | 20.5" |
| Barrel Threading | Threaded |
| Twist Rate | 1:7" |
| Overall Length | 30.4" |
| Weight (Unloaded) | 6.9 lbs |
| Magazine Compatibility | AR-15 compatible (10-round or higher capacity) |
| Trigger Pull | 4–6 lbs |
| Safety | Cross-bolt |
| Forend Mount | Bipod mount (swivel stud compatible) |
Frequently Asked Questions
What magazines work with the Kel-Tec RDB Hunter?
The RDB Hunter is compatible with standard AR-15 magazines. You can use 10-round magazines or any higher-capacity AR-15 magazine that fits your local laws and hunting regulations.
Is the barrel threaded for a suppressor?
Yes, the 20.5" barrel is threaded, making it ready for suppressor installation or muzzle devices.
What is the bipod mount on the forend?
The forend features a swivel stud bipod mount, allowing you to attach compatible bipods for shooting off a rest or stable platform.
Is the Kel-Tec RDB Hunter suitable for hunting?
The RDB Hunter is designed with a traditional hunting-rifle stock profile and handling characteristics. Its .223 Rem / 5.56 NATO caliber, 20.5" barrel, and 1:7" twist rate make it suitable for varmint and small-game hunting as well as range shooting, depending on your local regulations and game.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
- Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
- The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
- The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
- Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
- Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
- Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.

