I had mine installed by Evolution Armory using a Harrison series 80 beavertail:

https://shop.harrisoncustom.com/extreme-service-beavertail-grip-safety.

The proper fitment of a beavertail is non-trivial. Consider purchasing/borrowing the Harrison fitting tool and studying up on the process. The tool is at: https://shop.harrisoncustom.com/bt-101-instructions-for-use

CYa!
Mako









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