Jg Airsoft Full Metal Gearbox Lr-16 Ris Aeg RifleSPECIFICATIONS: OPERATION: ELECTRIC AUTOMATIC BUILD: METAL GEARBOX, RAILS POLYMER RECEIVER, STOCK, GRIP FIRING MODES: SEMI AUTOMATIC AND FULL AUTOMATIC MUZZLE VELOCITY: 390 435 FPS MAGAZINE: 300 ROUND HIGH CAPACITY (GEAR WIND UP) GEARBOX: FULL METAL BATTERY TYPE: 8. 4V LARGE INNER BARREL LENGTH: 363 MM HOP UP: ADJUSTABLE WEIGHT: 8 POUNDS PACKAGE INCLUDES: RIFLE, RECHARGEABLE BATTERY, WALL CHARGER, INSTRUCTION MANUAL, 300 ROUND HIGH CAPACITY MAGAZINE