Matrix" Steel CNC Airsoft AEG Gear Set (Super High Speed) / 13:1 ICS AIRSOFT or it can be barrel

or it can be barrel mounted to real gun style delta ring AEGs and Tokyo Marui style delta ring AEGs

•30 Round Metal Magazine

•Adjustable Windage/Elevation

or Moral Patches

•Rechargeable Battery And Charger

Matrix" Steel CNC Airsoft AEG Gear Set (Super High Speed) / 13:1 ICS AIRSOFT or it can be barrelMatrix Steel CNC Airsoft AEG Gear Set (Super High Speed) 13: 1 Gear Set Type: Super High Speed. Gear Ratio: 13: 1 Spring: Recommended M115 and Under. Battery: Recommended 11. 1V and Under. For: V. 2, V. 3, and all gearboxes that use standard type AEG Gears. (M4, AK, MP5, G36, P90 and other compatible AEG models.) Material: Steel. Production Type: CNC Machining. Manufacture: Matrix Tactical Systems Hong Kong Features: Reinforced Gear Set. Low Noise.