The Kel-Tec RDB is a compact semi-automatic bullpup rifle designed around a downward-ejecting action that keeps spent cases away from either shoulder. Its 17-inch nitride-finished barrel is chambered for .223 Remington and 5.56 NATO, while the fixed synthetic stock and rearward action help maintain a short 27.9-inch overall length. An ambidextrous manual safety, standard sights, full-length top Picatinny rail, and compatibility with AR-15 pattern magazines provide practical flexibility for range use and field applications.

Key features

• Downward-ejecting bullpup design supports comfortable operation from either shoulder
• 17-inch nitride-finished barrel balances compact handling with useful ballistic performance
• 20+1 capacity with compatibility for widely available AR-15 pattern magazines
• Ambidextrous manual safety and controls accommodate left- and right-handed users
• Full-length top Picatinny rail supports the addition of an optic
• Threaded 5/8x24 barrel accepts compatible muzzle devices and suppressors

The Kel-Tec RDB combines a compact bullpup layout with ambidextrous operation and familiar AR-15 magazine compatibility.