Action Army Steel Power Up Spring for Airsoft AEG – M150 Action Army that you are careful with

that you are careful with the knife and that it is used as intended

FPS:    410

Breathable TrekDry® keeps your hands cool and comfortable

Each knife is 11” of one

Action Army Steel Power Up Spring for Airsoft AEG – M150 Action Army that you are careful withSteel construction Non linear spring design Easy to install part to increase your stock FPS Specifications: Compatibility: For Tokyo Marui, Matrix and other compatible Airsoft Gearboxes Material: Steel FPS estimate based on average power output. Exact FPS result may vary based on alignment, installation, inner barrel, cylinder and other factors. 110% (M85) ~270~310 F. P. S. 120% (M90) ~280~340 F. P. S. 130% (M95) ~290~370 F. P. S. 140% (M100) ~320~380