Specifications Brand: Double Bell Operation: Electric Automatic Material: Metal Receiver, Outer Barrel, Stock, Top Cover / Faux Wood Upper & Lower Handguards / Polymer Motor Grip Firing Modes: Semi-Automatic, Full-Automatic, w/ Safety Muzzle Velocity: 315 - 325 FPS (w/ 0.20g BBs) Gearbox: Full Metal Version 3 Battery: 9.6V NiMH Stick Battery (not included) Magazine Capacity: 500 Rounds Hop-Up: Yes, Adjustable Length: 28" - 37" (Folded / Extended) Sight Radius: 15" Weight: 6.6 lbs Color: Black Package Includes: 1X Airsoft Rifle, 1X Magazine, 1X Instruction Manual Features Rugged Full Metal Body Metal Receiver, Outer Barrel, Top Cover Simulated Wood Upper and Lower Handguards Foldable, Metal Triangle Wire Stock Full Metal Version 3 Gearbox Oversized Trigger Guard Adjustable Hop-Up System Battery Compartment is Housed Above the Receiver Adjustable Front and Rear Iron Sights 500-Round High Capacity Magazine