COWCOW Technology Enhanced Piston Head for Tokyo Marui Hi-Capa/ 1911, M&P9L, M45A1 GBB Pistol

COWCOW Technology Enhanced Piston Head for Tokyo Marui Hi-Capa/ 1911, M&P9L, M45A1 GBB Pistol Enhanced Piston Head for Air-Tightness. Designed to withstand high impact pressure. Stabilized Performance. Improved durability over TM piston headDrop-in upgrade part For TM original BBU For TM Hi-CAPA/1911, M&P9 L, M45A1 Series Airsoft Gas Blow Back GBB Pistol