PRICE IS FIRM NO TRADES Features M16 VN type triangle M16 handguard Integrated carrying handle for a solid one-piece upper receiver Compatible with all standard version 2 parts and upgrades Upgraded internals (Stronger spring and reinforced steel parts) Full stock battery compartment for large type batteries Full Metal Outer Barrel assembly; Counter-clockwise threaded outer barrel (14mm) Adjustable hop-up system Long Barrel for enhanced accuracy and range