The Von Duprin 4754, 4854, 9954, and 9854 mullions can be converted or ordered with key removable option.
KR54-F kit is the conversion kit to convert the above mullions to key removable mullion.
The 6300 electric strike won't fit on the Von Duprin aluminum mullions.
The strike is too wide to fit on the flat part of the side of the aluminum mullions.