Night Fision Optics Ready Sights for P365/365XL The 167-165 blade height set will not co-witness with any optic cut and is an OEM height set best used with non-optic cut slides. 345-332 Blade height versions will provide a lower 1/3rd co-witness with most of our optic cut setups. 289-290 Blade... MSRP: Was: Now: $114.00 Choose Options