FCW M870 Tran M4 Magazine Adapter DE -Part
 
Only Fit To CYMA, Golden Eagle, Tokyo Marui Both M870 Gas & Air Cocking Shotguns
Not 100% Fit To Tokyo Marui  SPAS12 Air Cocking Shotguns, Modifiy Jobs Must Be Needed
Not Fit To A&K Brust Air Cocking Shotguns
Not Fit To Maruzen, A&K, S&T, G&P Single Shot Type Air Cocking Shotguns