This product includes the Optic Cut only. Sig slides are stainless steel and will not take black oxide tool finish. The optic will cover the cut.
For the Holosun K/EPS Carry the factory front sight will lower 1/4 Co-Witness.
For 1/3 Co-Witness add Angry Bear P365 Sites.
The RMRcc sits higher and requires Angry Bear P320 Sites for Co-Witness.
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Local to the Lee's Summit, MO area? Instead of shipping, you can drop off and pick up your slide in person by appointment. Book a drop-off appointment here.