My 625-8 PC has a DX style (interchangable) front sight. It originally had a .250" tall gold bead front sight & a .125" tall rear blade.
I wanted a deeper rear notch so I changed to a .146" rear blade & a .300" tall SDM front sight.
1.5mm is equal to .059" (according to my caliper) so installing one of SDM's taller .300" front blades should get you in the ballpark. They have gold bead, or their Super Sights, like I got.
SDM Fabricating Home
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