T/C Impact

[Quercus1955]

I'm new to the forum and need some help with my T/C Impact. I would like to upgrade my sights. Can anyone tell me what size Marble dovetail I need for my front sight. I'm planning on attaching a Lyman Globe to the dovetail for hunting purposes. My Impact is the hardwoods version. The rear sight will be a Williams peep sight part number 63304. Any help would be greatly appreciated. Thank you.

 

[45-70]

me i would find a good blade front that picked up light , if using a peep