Product Code: BACUSTOMAKS74M-G Product Name: Boomarms Custom-AKS74M With Grenade Launcher Stock: In Weight: 4300g Description: Marui AK47S Based Guarder AKS74M All Steel Kit (AK-16) Installed Star GP-30 40MM Grenade Launcher Specification: Upgrade to 330 fps with Systema parts Custom made Sanyo 1100mah 9.6V Battery