DF22AM2 DF22AP DF22AR-2EP-7.92C DF22AR-2EP-792C DF22AR-2S-7.92C DF22AR-3EP-7.92C DF22AR-3EP-792C DF22AR-3S-7.92C DF22B/C-1RS/P-7.92 DF22B/C-2RS/P-7.92