Kel-Tec RDB Defender 5.56 NATO Bullpup Rifle

$876.00 1 in stock
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Kel-Tec's RDB Defender is a lightweight 5.56 NATO bullpup featuring a 16-inch barrel, M-LOK handguard, collapsible stock, and 20-round magazine capacity. Compact and tactically versatile for home defense and sport shooting.

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Kel-Tec RDB Defender: Compact Bullpup Excellence

The RDB Defender represents Kel-Tec's refined approach to modern bullpup rifle design, combining the best features of their RDB platform into a purpose-built defensive rifle. This is a firearm engineered for those who value compact handling without sacrificing capability.

Key Features

  • Caliber: 5.56 NATO (.223 Remington)
  • Barrel: 16.1-inch pencil profile, 1:7 twist rate
  • Magazine: 20-round capacity; accepts standard AR-15 magazines
  • Handguard: Aluminum M-LOK for modern accessory mounting
  • Stock: Collapsible synthetic design for adjustable length of pull
  • Ejection: Downward ejection system—ideal for left and right-handed shooters
  • Weight: 6.7 pounds unloaded
  • Overall Length: 27 inches
  • Trigger: 4.5 to 5.5-pound pull

Why Choose the RDB Defender

Bullpup rifles offer distinct advantages: a shorter overall profile than traditional rifles while maintaining full barrel length and velocity. The RDB Defender's downward ejection eliminates the typical left-side brass spray, making it genuinely ambidextrous. The aluminum M-LOK handguard accepts industry-standard accessories, from lights to optics.

At 6.7 pounds, this rifle handles like a modern sporting carbine while delivering the ballistic performance of a 16-inch 5.56 platform. Whether you're defending your home, training at the range, or exploring tactical shooting sports, the RDB Defender delivers reliability and versatility in a compact package.

Specifications at a Glance: 5.56 NATO | 16.1" Barrel | 20-Round Magazine | 6.7 lbs | 27" Overall Length

Features

  • 1:7 twist 16.1" barrel
  • colapsable stock
  • ar-15 magazine compatibility
  • bullpup design
  • picatinny rail on top of receiver
  • aluminum, m-lok handguard
  • aluminum m-lok forend

Attributes

Action: Semi-Automatic
Barrel Description: Pencil Profile
Barrel Length: 16"
Barrel Length: 16.1"
Caliber: .223 Remington
Caliber: 5.56x45mm NATO
Capacity: 20
Capacity: 20+1
Color: Black
Features: N/A
Finish: Black
Finish: Blued
Finish: Matte Blue
Grip Type: Black Synthetic
Grips: Black Synthetic
Hand: Right Hand
Included Accessories: None
Magazine Type: 20rd Magpul PMAG
Metal Finish Group: Blued/Black
Model: RDB Defender
Model Series: RDB
Overall Length: 26.10"
Overall Length: 27"
Receiver Material: Polymer
Safety: Ambidextrous Thumb
Sights: Ambidextrous
Stock: Black Polymer Bullpup
Stock Description: Collapsible
Stock Finish Group: Black
Thread Pattern: 1/2"-28
Twist Rate: 1:7
Weight: 6.7 lbs