Designed with Milsig Minibox™ system, 3D printed sci-fi appearance, compact platform contains infinite possibilities, unleash your endless creativity!MRX1SpecificationsLength: 465mmWeight: 1150gCaliber: .50/13mmAmmo: .50 Hydron/13mm Short DartPower Source: CO2/HPA(Optional)Manuals[EN] MILSIG Modular Blaster System (MMBS) Introduction [EN] HPA Blaster 101 [CH] 使用者教學手冊 - 安裝膛線至通用整合式膛線槍管