SKU: 120491
UPC: 640832008098
MPN: RDBDGRN
The Kel-Tec RDBDGRN RDB Defender 5.56 NATO rifle is a modern, purpose-built platform engineered for tactical operators, law enforcement professionals, and serious civilian shooters who demand reliability in dynamic environments. This compact 5.56 NATO carbine bridges the gap between traditional AR platforms and next-generation bullpup design, offering shooters a significantly reduced overall length without sacrificing barrel velocity or effective range.
Built around a short-stroke, piston-driven operating system, the RDB Defender cycles 5.56 NATO ammunition with consistent reliability while managing recoil impulse effectively—critical for rapid, accurate follow-up shots during high-stress scenarios. The 16.1-inch barrel provides optimal velocity for 5.56 NATO duty rounds while maintaining legal and practical length for close-quarters work, tactical entries, and vehicle-based operations.
At 9.3 pounds, the rifle achieves a balance between structural rigidity and carrier endurance, reducing fatigue during extended operations. The 21-round magazine capacity provides enhanced firepower reserve without excessive bulk. The OD Green finish offers both professional aesthetics and proven corrosion resistance in field conditions, while maintaining a low-profile appearance.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
