with an alloy upper receiver

Muzzle Velocity: 400-405 FPS (tested with

Available here at SS Airsoft

even when your trigger press isn't perfect

High Strength Nylon Reinforced Polymer Construction

SS Airsoft 140% Spring & Buffer Upgrade Kit for Hi-Capa/1911 SRC with an alloy upper receiver140% Hicapa 1911 Upgrade Kit INCLUDES THE FOLLOWING: COWCOW Competition Recoil Buffer Module Competition Recoil Buffer Module for Hi capa 1911 is prefect fit for professional user. Its high quality anti oil rubber material is able to prevent swelling and broken and perform excellent on shock adsorption. It minimises the jamming caused during heavy usage. There are 4 levels of hardness of our buffer with stainless steel spacers. Users can pick your own