# Kel-Tec RDB Defender 5.56 NATO 16.1in Tan

**Brand:** Kel-Tec
**Category:** Bullpup Rifles
**Caliber:** 5.56 NATO

## Specifications

- **Caliber:** 5.56 NATO
- **Barrel Length:** 16.1"
- **Finish:** Black Nitride Barrel
- **UPC:** 640832008104
- **SKU:** UCBHUnnWi

## Description

The Kel-Tec RDB Defender is a bullpup, gas-piston semi-automatic rifle chambered in 5.56 NATO. It has a 16.1-inch black nitride barrel and a tan Picatinny receiver with an M-LOK handguard. The stock is collapsible, adding to the already compact bullpup package.

### Key Specifications
- **Brand:** Kel-Tec
- **Model:** RDB Defender
- **Caliber:** 5.56 NATO
- **Action:** Semi Auto
- **Category:** Bullpup Rifles
- **Barrel Length:** 16.1 in
- **Capacity:** 20+1 Rounds
- **Color:** Tan
- **Receiver Material:** Aluminum

### Detailed Features
- A gas-piston operating system is used instead of direct impingement for cycling.
- The M-LOK handguard gives mounting space for lights, grips, and other accessories along the forend.
- The collapsible stock lets the already-short bullpup shrink further for storage.
- Ambidextrous safety and a reversible operating handle support both left- and right-handed shooters.
- Ships with a 20-round magazine for a 20+1 total capacity.

## Frequently Asked Questions

**Q: What caliber is the Kel-Tec RDB Defender?**

A: The RDB Defender is chambered in 5.56 NATO.

**Q: What is the barrel length of the Kel-Tec RDB Defender?**

A: It has a 16.1-inch black nitride barrel.

**Q: How many rounds does the Kel-Tec RDB Defender hold?**

A: It ships with a 20-round magazine for a 20+1 total capacity.

**Q: Who makes the RDB Defender?**

A: Kel-Tec makes the RDB Defender.

**Q: What type of firearm is the Kel-Tec RDB Defender?**

A: It is a bullpup, gas-piston semi-automatic rifle with a tan Picatinny receiver, an M-LOK handguard, and a collapsible stock.

**Q: Where can I buy the Kel-Tec RDB Defender?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

Kel-Tec's RDB Defender draws mixed reaction on build quality. Owners like that the bullpup layout keeps the rifle short for its barrel length, and the gas-piston system runs cleaner than a direct-impingement design. Some buyers of early production runs report needing warranty work, though that has reportedly improved on newer rifles.

Ergonomics are the most talked-about part of owning an RDB. The ambidextrous controls and reversible charging handle earn praise from left-handed shooters, but the trigger pull draws steady criticism as long and heavy. Bullpup balance takes some adjustment for shooters used to a traditional rifle layout, and a few owners find the magazine release position awkward at first.

On value, buyers like getting a compact 5.56 platform in a factory-built package, though the bullpup's aftermarket support for triggers and accessories is thinner than more common rifle platforms.

## Pricing

**7 offers available**

| Vendor | Price |
|--------|-------|
| Classicfirearms Com | $781.39 |
| Grabagun Com | $799.99 |
| Gritrsports Com | $799.99 |
| Shootingsurplus Com | $808.38 |
| Kygunco Com | $819.25 |
| Buds Gun Shop | $821.49 |
| Guns Com | $889.99 |

## Similar Products

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*Data from [GunsNation](https://gunsnation.com)*