KEL-TEC RDB 5.56mm Rifle
RDB rifle for sale. 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 Kel-Tec Rifle, Downward-ejecting, Bullpup (RDB) is Kel-Tec’s latest 5.56mm rifle. In a marked change from the earlier SU-16 and RFB, the RDB is a mostly conventional design: an AR-18 style rotating bolt, short-stroke piston-driven rifle. Its sole deviation from convention is its method of ejection—straight downwards—which makes it amenable to being fired from both shoulders. But how does it compare to a regular AR-15 at its price point? Do the bullpup’s features provide a compelling alternative to a premium AR?
The RDB’s primary selling point, downward ejection, is both a blessing and a curse. Despite Kel-Tec describing it as “revolutionary,” similar downward ejecting designs have been used before and proven in battle. The most notable of these are the British Bren light machine gun and American Ithaca 37 shotgun. But both of these designs feature relatively little material around the ejection port on the bottom of the gun. This allows for a user to easily flip the gun over to remedy jams or other feeding difficulties. In contrast, the RDB’s downward ejection chute is significantly more built-up than either of the earlier guns, which may cause problems when trying to remove stuck casings or stovepipes.
Another big selling point of the RDB is it’s “excellent trigger.” While this may have been true compared to bullpups of past generations, the Tavor X95 was released only a year later and features a comparable trigger to the RDB. The famous trigger manufacturer Geiselle even makes the “Super Sabra” trigger pack for the Tavor that improves the trigger to easily surpass the RDB’s.
It’s important to note that the RDB’s “excellent trigger” is only superior relative to other bullpups. While it is marginally better than a stock “milspec” AR-15 trigger, most guns with a conventional layout and even “budget” upgrade triggers will easily surpass the RDB’s trigger in mitigation of creep, reset, and travel.
RDB stands for Rifle Downward-ejecting Bullpup and the 17 points to the barrel length. This variant is the original and features a high-impact resistant Zytel forend with built-in Picatinny-style rail on the bottom for mounting accessories. Like all the RDB variants, it’s completely ambidextrous, accurate and compact.
This 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.
Unparalleled Trigger System
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.
ADJUSTABLE GAS SYSTEM( RDB rifle for sale )
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.