[Models compatible: Tokyo Marui gas blowback line-ups series / P226 / P226E2[Built-in difficulty: * * * * *Shipping weight: 13.6 gManufacturer reference: 170458# 5147--Hobbies: Airsoft & model gun > partsGas blowback gun fire BB bullets using the pressure of the gas, then slide back the load the next bullet.Real step process consisting of gas flow the moment pressure "velocity" is the real gun of similar gimmicks and recoil is born.Gasket is most needed parts to send to a gun of this power, gas in the gun with the magazine contact.Sliding the adhesion tension gas balance is not good and does not work well.In addition, by outlet size and position are important, larger increases gas flow velocity decreases the balance will cause deterioration of the bullet speed reduction or variation, fuel.