Do try to discuss ONE Pistol at a time in your Posts. It will make keeping things sorted around here easier, and you will get better more focused responses.
Your Optics question should also be a separate thread.
As for the SAR K2P, I own and occasionally shoot one. It's been a great Pistol so far. Carried it for three Fall and Winter seasons and occasionally still do.
I also own and run the SAR K2P's slightly larger sibling, the SAR B6P, which has also been excellent.
Currently, there are quite a few SAR K2P's left on the Market, going for excellent prices.
Were I needing one, I would not hesitate to buy one.
SAR K2P with Hogue Handall, SAR K2P Magazine and Mec-Gar Cz75B 17 and 19 round Magaines