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 pencil profile barrel. Defend your property your community and your homeland with the most tactically versatile bullpup on the market with the RDB Defender. - Caliber: .223Rem - Weight Unloaded: 6.7lbs - Magazine Capacity: 30 or any AR15 Magazine - Overall Length: 27in - Barrel Length: 16.1in - Twist Rate: 1:7in - Trigger Pull: 4.5-5.5lbs