5KU Picatinny Rail Stock Base for E&L AK74S Airsoft Rifle

5KU Picatinny Rail Stock Base for E&L AK74S Airsoft Rifle Metal Construction 20mm Picatinny Rail on Rear For Attach Sling Mount Or (Picatinny Rail) Stock on Your Rifle Suitable For E&L AK74S Series Gas Blow Back GBB Rifle Airsoft Guns