The RDB Defender is the result of taking the RDB and the RDB Survival and mashing them up to forge the perfect 5.56, light-duty, tactical bullpup. It's lightweight, comes standard with an aluminum, M-LOK handguard, collapsable stock and 16" pencil profile barrel. Defend your property, your community and your homeland with the most tactically versatile bullpup on the market with the RDB Defender.