5KU JMAC Style SS-8R Folding Buttplate Stock For 20mm Picatinny Rail

5KU JMAC Style SS-8R Folding Buttplate Stock For 20mm Picatinny Rail Metal Construction Folding Style Buttstock Designed to be Compatible with Picatinny Rail Suitable For SIG Sauer MCX AEG Airsoft Guns Also Fit For SIG AIR MPX AEG Airsoft Rifle