The rear sight houses part of the Schwartz system below it on the custom II.
I ahve not had the sight off, but would be aware of it.
The customer service at Kimber is another reason that I'm a proud owner. Kimber sent me this. The links may be helpfull to you or others. Please enjoy.
BTW, I don't require a bushing wrench to dissasemble the Kimber, it was just left out of the box and they were kind enough to send me one.
If the pictures are not clear, click on them and open.
Jerry,
Thank you for your email and for choosing the Custom II. Please email me your address and I will mail you out a bushing wrench. As for disassembly, I have added a pair of links below to demonstrate disassembly and reassembly.
Disassembly:
Kimber Series II - Disassembly
Assembly:
Kimber Series II - Assembly
If you have any further questions please let me know and I will be glad to help you.
Thank you and best regards,
Carl Flesch
Technical Representative