5KU SS-8 Folding Stock With 1913 Rail Adapter

5KU SS-8 Folding Stock With 1913 Rail Adapter Aluminum Construction Buttstock SS-8 Style Airsoft Stock With 20mm Picatinny AR Folding Stock Adapter Suitable For SIG AIR MCX/ MPX AEG Rifle Airsoft Guns Also Fit For Airsoft Rifle With a Picatinny Rail Stock Mount/ Adapter