Matrix/King Arms Full Steel Teeth Polycarbonate Piston for Airsoft AEG Gearboxes Adapter Can also use both CO2

Can also use both CO2 and green gas mags(comes with CO2 mag)

Metal M-Lok Rail System

P90 Box Mag Conversion and various other brands

Re-engineered the hopup levers and nubs to work best with R-hop

Matrix/King Arms Full Steel Teeth Polycarbonate Piston for Airsoft AEG Gearboxes Adapter Can also use both CO2This Matrix piston features a super core hard polymer construction just like the Systema and Super Core pistons, a full rack of steel teeth, and modified rail dedicated for high power and high performance applications. With the full steel teeth and polycarbonate piston body, this piston will provide durability over pistons with polycarbonate teeth, but without the cost of weight. Full rack of CNC Steel Teeth. Extremely hard polycarbonate piston body.