Guarder Steel CNC Recoil Spring Guide for Marui G17 Gen 4 GBB Pistol Capacity-(rds)_22 Rounds This Madbull Airsoft version is

This Madbull Airsoft version is made out of anodized aluminum for a more serious feel and appearance

Angry Gun Aluminum 416D MWS Conversion Kit with Z-parts 14

5" Rail (Gen 2) for AEG/ GBB/ PTW (Sopmod Block III)

-BIO Infected Silencer (Black) (CW) (SIL004BC)

125% enhanced recoil spring

Guarder Steel CNC Recoil Spring Guide for Marui G17 Gen 4 GBB Pistol Capacity-(rds)_22 Rounds This Madbull Airsoft version isGuarder Steel CNC Recoil Spring Guide for Marui G17 Gen 4 GBB Pistol CNC Steel Construction Design For Upgrade the Original PArts More Durable Suitable For Tokyo Marui G17 Gen4 Series Airsoft Gas Blow Back GBB Pistol Included is an extra spring optimized for use with steel slides.