KELTEC RDB-D 5.56MM 16.1″ 20RD BLK

SKU: LIP|KTRDBDBLKUPC: 640832008081Mfr. Part #: RDBDBLK

$899.99

KELTEC RDB-D 5.56MM 16.1″ 20RD BLK

Available to order: 9 in stock

You'll log in or create an account so you can track payments.

How buying works

  1. Buy online. Pay securely by card at checkout.
  2. Pick up in Greenville. Choose In Store Pickup at checkout, then bring a valid photo ID to 2510 Hemphill St. and fill out the ATF Form 4473 at our counter.
  3. Or ship to your local FFL. Pick your dealer at checkout. They may charge a transfer fee, so check with them first.

Layaway available: reserve it for $243.56 down (25% with tax), with no fee if paid off within 30 days. Layaway details

Questions? Call (903) 259-6600.

Compare
SKU: LIP|KTRDBDBLK Category: Tag:

Description

Like no ordinary bullpup, the RDB series of rifles redefines the platform. You’ve never experienced balance or a trigger quite like this in any other design. The RDB is completely ambidextrous due to its patented downward-ejection, magazine catch/release placement, intuitive safety and reversible operating handle. The RDB series of bullpups delivers a 5.56/.223 ballistic advantage in a very compact package that’s easy to manipulate for just about anyone. The RDB’s unrivaled design sends spent brass downward through the stock, behind the magwell making it a truly ambidextrous bullpup rifle. Gone are the days of hot gas & brass flying out of a side-ejection port you’re welcome, southpaws. Bullpup triggers are notoriously bad, so we tackled that issue head on and won. This trigger is incredibly smooth, with a nice take-up and clean break. Combined with a 1:7 twist barrel, all RDB models offer excellent accuracy. All of the RDB models operate off of the same adjustable gas piston system. This feature allows the user to tailor the bolt carrier speed to eliminate excessive recoil while running a suppressor and ensure reliability for various loads.

Additional information

upc

640832008081

manufacturer

KelTec

Manufacturer Part Number

RDBDBLK

Action

Semi-Auto

ATF Type

MODERN SPORTING RIFLE

Barrel Length

16.1"

Caliber/Gauge

.223 REM/5.56 NATO

Capacity

20

Length

37.1000

Model

RDB

Number of Magazines

1 20 rd. Magpul PMAG

Package Height

3.7

Package Width

10.3

Product Type

Carbine

Rate of Twist

1:7"

Safety

Ambidextrous

Shipping Weight

10.15

Sights

No

State Restriction (CA)

NO DIRECT SHIP TO CALIFORNIA

State Restriction (IL)

NO SALE TO ILLINOIS PICA

State Restriction (OR)

NO SALE TO OREGON

State Restriction (RI)

NO DIRECT SHIP TO RHODE ISLAND

State Restriction (WA)

NO DIRECT SHIP TO WASHINGTON

Units per Box

1

County Armory Spartan helmet emblem

Deals, New Arrivals & 2A News

Join Our Newsletter

Be the first to hear about new inventory, in-store specials, and updates that matter to gun owners.

Thanks for subscribing! Watch your inbox for deals and news.

Firearms Articles & Long Range Technology

County Armory 2A News

Check out the latest information on new products, long-range rifles, custom builds, laser engraving and more at County Armory.

The $200 tax stamp is gone: what Texas gun owners need to know about suppressors, SBRs and the NFA in 2026

October 20, 2026

The $200 Tax Stamp Is Gone — But Is the NFA Really Gone? What Texas Gun Owners Need to Know

The $200 tax stamp is gone for suppressors and SBRs, and ATF has stopped enforcing Form 4 approval. Here is what still applies to Texas gun owners.

Learn More

October 13, 2026

ATF Issues New Guidance on Form 4, NFA Items, Suppressors, SBRs, and What It Means in Texas

ATF will no longer enforce Form 4 approval or tax stamps for suppressors, SBRs, SBSs and AOWs. Here's what changes for Texas buyers.

Learn More
Suppressors are becoming one of the biggest stories in the firearms market

June 11, 2026

Suppressors Are Becoming One of the Biggest Stories in the Firearms Market

The federal suppressor tax stamp dropped from $200 to $0 in 2026, making suppressor ownership more accessible than in decades.

Learn More
Search
×

Select at least 2 products
to compare