CowCow Competition Recoil Module Buffer For Hi Capa 1911 Manufacturer_KWA For MARUI M9 92F GBB Early For MARUI M9 92F GBB Early type use only Item Weight (gram) 1700 Major Color Dark Earth Black Length 310mm 525mm Barrel Length ~145mm Blow Back Yes Hop up Adjustable Shooting Mode Semi Fully Automatic Other Power Source Top Gas Magazine Capacity 55 + 1 Rounds Bullet Type 6mm BB Power (Muzzle Velocity) 390 FPS (Top Gas Test @ 25°C Room Temperature) Manufacturer KSC Package Includes KSC TP9 Gas Blow Back Submachine SMG Gun Competition Recoil Buffer Module for Hi capa 1911 is prefect fit for professional user Different combination to optimise the recoil for professional player