including their proprietary AIR CUSHION barrel that directs gas flow from the pistol for enhance hop up energy and centering the BB in the barrel

1x Flip-Up Rear Sight

the AAP-01 still retains many internal cross-compatibility with current gas pistols

Battery Connector: Rear Wired to a Deans Connector

Lancer Tactical 14 Teeth Reinforced Aluminum Full Stroke Piston with CNC Steel Teeth (Color: Red) stubby including their proprietary AIR CUSHIONLancer Tactical 14 Teeth Reinforced Aluminum Full Stroke Piston with CNC Steel Teeth Specifications Brand: Lancer Tactical Construction: Aluminum Piston with CNC Steel Teeth Compatibility: For Tokyo Marui Spec V2, V3, and other compatible Airsoft AEG Gearboxes Color: Red Features Durable aluminum construction allows for this piston to be durable Heat treated carbon steel that is more durable and reliable over polycarbonate Drop in design that works