They do have a slide milling option currently but that picture has a RDO plate with integrated rear sight like they has used on the 92 RDO. To make that work will likely require similar modifications to the drop safety and firing pin. LTT has said before this was an option going forward if demand warrants and the $$$ numbers make sense. A lot more 92 uses roaming around compared to us PX4 cultist.
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