HEPHAESTUS Stainless Steel Piston for Marui AKX GBB Airsoft

CNC machined stainless steel ( SUS304 ) construction Enhanced Piston Head design for smooth cycling Increase recoiling mass to increase kick and felt recoil ( HE-TM-005 : ~68g vs stock AKM Dummy Gas Piston : ~15g ) Improved weight balancing for better shooting experience while keeping the rate of fire and gas efficiency Drop-in upgrade to replace stock Dummy Gas Piston of Tokyo Marui AKX GBBR ( #MGG10-19 )