| MXXA-121-38Afull overlay |  | 
| MXXA-121-38A0-4full overlay |  | 
| MXXA-121-38A0-EUfull overlay/euroscrew |  | 
| MXXA-121-38A0-L-2full overlay/long piston/2 holes |  | 
| MXXA-121-38A0-L-4full overlay/long piston/4 holes |  | 
| MXXA-121-38Bhalf overlay |  | 
| MXXA-121-38B-4half overlay |  | 
| MXXA-121-38Cinset |  | 
| MXXA-121-38C-4inset |  |