The MDT Gen2 Polymer Magazine delivers reliable performance for 223 Remington with 12-round capacity and AICS compatibility. Built from durable polymer construction in a sleek black finish.MDT Gen2 Polymer Magazine - 223 Remington12-round detachable AICS box magazine designPolymer construction for lightweight durabilityEasy to load with reliable quiet magazine insertionsMaintains steady temperature performanceCompatible with MDT TAC21 ACC ESS LSS-XL XRS HNT26 LSS Chassis systemsFits M24 type chassis and bottom metalsEngineered for precision shooting applications this magazine lets you focus on accuracy with quiet reliable operation and easy maintenance for competitive and tactical use.