HK MP5K Full Metal - AEG i4 7 Inch rail system is

7 Inch rail system is standard on top and bottom on its sides

1v with a mosfet before ordering this

Choose from clear or darker grey lenses (for outdoor daylight use)

plus an internal compartment for what ever else you carry

HK MP5K Full Metal - AEG i4 7 Inch rail system isThe HK MP5K AEG. This is a full metal heavy high quality airsoft gun. Kit includes a bunch of bonus items! A very realistic MP5K replica fully licensed by HK. A favorite of the SAS and other counter terrorist organizations, the all new MP5K features a full metal gearbox and is compatible with Tokyo Marui MP5 internal parts (Cyma OEM). The hop up is fully adjustable with a side lever switch near the front handguard. Gun is 18 inches in total length.