Poseidon Air Cushion Bolt Action Rifle Barrel 500mm - Electroless Coating ( For Marui ) ( Hop Up Rubber Not included ) Magazine Catch the pressure will comes from

the pressure will comes from the liquid gas in the magazine (discharge or hydrology) for replace the lacking of pressure

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Perfect for restoring water repellency to synthetic insulated garments

Features:Brush length:  102

Poseidon Air Cushion Bolt Action Rifle Barrel 500mm - Electroless Coating ( For Marui ) ( Hop Up Rubber Not included ) Magazine Catch the pressure will comes fromPoseidon Air Cushion Bolt Action Rifle Barrel 500mm Electroless Coating ( For Marui ) ( Hop Up Rubber Not included ) The all new Poseidon Air Cushion barrel features a new patented design with a unique Air Track Inner Bore design that creates an optimal air cushion around the BB, allowing BB to go through the barrel in a higher speed and more consistently. Combined with Air Relief Divergence feature that diverts the air turbulence that is created at