Dytac EMG Marui MWS GBBR Noveske SBR Chainsaw Receiver & Handguard Conversion Kit - Noveske "Chainsaw" Upper & Lower Receiver, 4th Gen NSR-9.75" M-LOK Handguard, EMG & Noveske Licensed, M-Lok Compatible. Material: Aluminum. Weight: 930g. Barrel length: 26