High-Performance AEG Replica of the DD MK18 RIS III Rifle Specna Arms "PRIME" Series Full Metal Receiver Construction with Official Daniel Defense Markings Unique Individual Serial Number on the Barrel MLOK Rail Aluminum MK18 Handguard Flip-up Front & Rear sights AEther Gearbox with Quick Change Spring System 6.02 / 370mm Inner Barrel Hop-up Rotary TDC Chamber Helium Flat Hop-Up Bucking AEther Gearbox Internals: Reinforced Polymer Pistol with Full Steel Teeth Aluminum Pneumatic Assembly Bearing-Supported Spring Guide CNC Machined Steel 16:1 Gears 8mm J-Cage Ball Bearings for Motor and Piston Pinion 8mm Plain Bearings for Central Pinion Quantum 2 Series Trigger Specna Arms Dark Matter High-Speed 27K Brushless Motor Factory-Fitted GATE ASTER II Bluetooth ETU Module Gate Aster II Bluetooth Spec: Quantum 2 Trigger Sensors - 35 Sensitivity Settings by First Millimetre / 680 Sensitivity Settings Down to Trigger Reset Base Binary Trigger Mode Motor & Battery Protection Compatible with Brushless Motors Pre-Cock Setting Active Break Low Battery Warning Sniper Mode Bluetooth Connection to App