Angel Custom "KRATOS" Ultra High Strength / High Performance Steel Teeth AEG Piston (Model: KRATOS II) 14mm threads Army M68 CCO series

Army M68 CCO series

Very easy to install so you can add longer and bigger batteries in your rear stock/buffer area

The 345 fps velocity means this gun offers competitive performance and conservative gas usage while being field legal

then the EMG Noveske Space Invader AEG is quite possibly one of the best choices out there

S&W M&P 9 GBB Spare Gas Magazine

Angel Custom "KRATOS" Ultra High Strength / High Performance Steel Teeth AEG Piston (Model: KRATOS II) 14mm threads Army M68 CCO seriesFeatures KRATOS II design features pre adjusted Angle of Engagement (AOE) ideal for high cycle custom builds Extended piston body and precisely positioned teeth correct for AOE with 3rd tooth modified to allow for reliable drop in installation DuPont Super Nylon polymer piston body Hardened SAE steel teeth rack 48 degree WEDM precision cut teeth Gold Titanium Nitride (TiN) coated rack for durability and wear pattern indication Up to 55 RPS for high