The Details:

• Polymer Receiver
• 450 Round Magazine
• Rotary Hop Up
• 6.03mm Inner Barrel
• Wired to Deans
• ETU for 3 round burst
• Pre-installed MOSFET

Weight: 2599g
Inner Barrel: ~300mm
Magazine Capacity: 300rd Hi-Capacity. Works with Matrix, G&G, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines
Muzzle Velocity: 350~370 FPS (Measured with 0.20g BBs)
Thread Direction: 14mm Negative
Gearbox: Ver 2 Full Metal, Fully Upgradeable
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Battery: 7.4v Small Stick Type LiPo recommended (Wired to the Stock with a Deans connector. Battery not included.)
Hopup: Yes, Adjustable