My Cart

You have no items in your shopping cart.

Kel-Tec RDB Downward Ejecting Bullpup 5.56 / .223 Rem 17.3-inch 20Rds

Kel-Tec RDB Downward Ejecting Bullpup 5.56 / .223 Rem 17.3-inch 20Rds

Availability: In stock

$792.9900 In stock
As Low As $51 For 18 Months*

No Hidden Credit Card Fees!

Quick Overview
Kel-Tec has redefined the definition of Bullpup with this RDB Downward Ejecting Bullpup rifle. For a true ambidextrous experience, the gun can be effortlessly switched from your dominant to non-dominant hand and not interfere with your performance. Get your very own from GrabAGun today for the cheapest price online!

$7.99 Flat Rate Shipping On All Firearms!
$12.99 Flat Rate Shipping On All Ammo, Regardless Of Quantity!

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 2 answers
Why did you choose this?
GrabAGun Store
Like Keltec rifles and have always wanted a bullpup.
Timothy R on Oct 6, 2018
Like Keltec rifles and have always wanted a bullpup.
Timothy R on Oct 6, 2018
Reputation and compact design
David C on Aug 4, 2018
Reputation and compact design
David C on Aug 4, 2018
5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Best bullpup for the money on the market
Being a lefty, most bullpup firearms eject the brass in my face. This one has a rather ingenious downward ejection which makes it truly ambi.

adjustable gas for shooting suppressed... awesome. Works well. And speaking of shooting suppressed... being a lefty the gas blowback into my face on most AR's is just awful when shooting suppressed. This has NONE... its just awesome.

cheap plastic handguard can be replaced with a m-lok (much more useful and comfortable.

Trigger is outstanding and function is flawless after 500 rounds or so... would highly recommend...
This does NOT come with the magpul foregrip as showing in the picture... it should be grayed out as well.
October 30, 2018
4 months ago
Kel-Tec RDB Bullpup
So far this weapon is what I would expect from Kel-Tec as I have purchased four Kel-Tec guns previous to this one.
September 29, 2018
5 months ago


RDB Downward Ejecting Bullpup Features

Kel-Tec's RDB bullpup design provides a compact, well-balanced rifle featuring a revolutionary downwards ejection and fully ambidextrous controls, enabling it to be fired from both the dominant and non-dominant side. The result is casings eject out of your line of sight for a truly ambidextrous, high performance rifle. The RDB maintains a center of gravity over the grip assembly to facilitate ease of handling and balance. It comes equipped with two integral MIL-STD-1913 Picatinny rails, located above the barrel and on the handguard for mounting accessories and multiple sling attachment points compatible with a hook-style swivel. It is compatible with AR-15 style magazines. This RDB model has a 17.3" barrel and a black finish. It includes a 20-round magazine. NOTE: Scope is not included.

RDB Downward Ejecting Bullpup Specifications

  • Brand: Kel-Tec
  • Category: Tactical Rifles
  • Caliber: 223 Remington / 5.56 NATO
  • Model: RDB
  • Series: Downward Ejecting Bullpup
  • Action: Semi-Automatic
  • Barrel Length Range: 16.00" to 17.99"
  • Sights: None, Optic Ready
  • Capacity: 20 1
  • Muzzle: Flash Hider
  • Hand: Ambidextrous
  • Metal Finish: Black Nitride
  • OAL: 27.28"
  • Safety: Ambidextrous
  • Stock Description: Polymer Bullpup Black
  • Twist: 1:7"
  • Weight: 6.7 lbs
  • Barrel Length: 17.3"
Additional Information

Additional Information

Manufacturer Kel-Tec
SKU GAG_ES-0141364
Condition New in Box
Action Type No
Caliber 5.56
UPC 640832005943
Model RDB Downward Ejecting Bullpup
Type No
Manufacturer Part Number RDBBLK
Accessories No
Barrel Length 17.3
Finish Per Color Black
Capacity 20
Firing Casing No
Frame Per Material No
Hand No
Sights No