Keltec RDB Bullpup 5.56mm, 20″ Barrel, Black, 20rd

RDB Bullpup 5.56mm NATO 20 Inch Barrel Black Grip 20 Round

Downward-ejecting bullpup. Features a rotary bolt with a spring loaded ejector and an extractor facing down. Spent case is pulled backwards along the top of the magazine and then ejected through a vertical chute. Hammer is U-shaped and runs outside the chute and above the magazine. Bolt travel is longer than traditional designs but well within the ergonomic constraints of a rifle. Picatinny rail allows the use of any aftermarket optical, electronic or flip-up sighting system. Backbone of the rifle is formed by the barrel and its extension which runs rearward to serve as bolt group guide and structural support for external housing which is made of plastic. Uses STANAG (M16 / Ar15 compatible) magazines and magazine release lever is centrally located in front of the magazine housing. To release the magazine, one has to push this lever backwards and this can be done by either non-firing hand or by the back of the firing hand depending on situation and user preferences.


  • Name : Rdb20 5.56mm Bl/black 20
  • Desc :
  • Model : RDB
  • Model # : RDB20BLK
  • Manufacturer : Keltec
  • Caliber : 223 Rem | 5.56 NATO
  • Type : Rifle
  • Action : Semi-Auto
  • Barrel : 20″
  • Finish : Blue
  • Stock Frame : Black Synthetic
  • Magazine : /

Estimated shipping times are posted on the product information page under the title “Ships On Or Before:” please note that all lead-times are estimates.  For items in our warehouse, we usually ship within 3 business days.  For items only available at distribution or other sources, the ship time may be up to 10 business days.  For items only available at the manufacturer, the lead-time may be a few weeks or longer– depending on availability.

Please also note that some items are unique, hard to obtain, or one-of-a-kind, so Impact reserves the right to cancel your order should an item not be available to ship.

We will not charge your credit card until your product ships, except for certain special orders.

We normally will ship FedEx and US POSTAL. If you need faster shipment, we can ship 2nd Day or Next Day for an extra charge.

Alaska and Hawaii residents – your order MUST ship 2nd day or faster. Most orders over $100 value will ship with a signature-required to ensure they make it to you. Products that have free shipping only applies to the lower 48 states.

NOTE: We make every effort to get your order shipped as fast as possible. In some circumstances, especially during sales and after weekends, we may not get your order shipped in the time specified. Please rest assured that we will ship your item as soon as we can.

We want you to be 100% satisfied with your purchase from MULTI GUN SHOP, therefore we offer no hassle returns.

How do I start the return process?

  • Log in to your https://multigunshop.com account and locate and click on the “Request Return” link.
  • An MULTI GUN SHOP agent will review your request for a return and respond within two business days.
  • All returns are subject to inspection and approval prior to refund being issued.
  • All products need to be in new and original manufacturer condition.
  • As an alternate method, you can send an email to Support@multigunshop.com. Please be sure to include your original order number and relevant contact information.

When will I get my credit or return?

  • Most returns are fully refunded in 3-5 days after we receive and process the return. It may take longer for the credit to appear in your account depending on your bank. Most items that are in stock ship within 3-5 days after receipt of your returned item but may take longer depending on availability.
  • Returns must be charged back to the original credit card used in the purchase.  If this is not possible, we will refund you via check.

What about damaged/incorrect items?

  • If you received a damaged, defective, or incorrect item, MULTI GUN SHOP will ship you a replacement of the exact item upon receipt of the damaged or defective item. MULTI GUN SHOP will send you a return shipping label for the return.

What about return shipping costs?

  • If an MULTI GUN SHOP error causes the need to return an item or we are replacing a returned defective or incorrect item, then we will pay the associated shipping costs.
  • Otherwise, the customer is responsible for any return shipping costs. When returning an item, please add package tracking and adequate insurance.
SKU: 95f128a1b255 Category: