NL2140 21700 Battery 3.7V 4000mAh end of year sale Material: Aluminum Pieces: 2 Rail Kleur:Everglade Material: Aluminum Pieces: 2 Rail Type: Picatinny Weaver Profile Level: Medium Ring Diameter: 1 Inch Ring Width: 22mm A: 1 Inch B: 22mm C: 15mm Weight: 130 g Shipping weight: 170 g The rear of the pouch attaches to Belts and Rigs and uses 4 x rows of MOLLE 7 Volt (1 Cell) Charging current (max 8 Wh Weight: 35 g Shipping weight: 80 g Information from producer (extern)