The M18 gets some praise in the budget gun market but it does feel cheap. All of the guns in this class are interchangeable to me. Defining one as any better or worse than the others is splitting hairs.
The M12 does look nice. The extractor/ejector arrangement looks strange to me. Have not held one but the pictures make it look mechanically difficult for the ejector to push the casing away from the extractor (appears to be right next to the extractor). It also looks to be ejecting at such an angle as to launch the casing into the scope turret.
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This is just speculation based on the above photo. Those who actually own it please correct me if I’m mistaken.
The lug arrangement looks to be very strong and the cocking indicator/striker is a nice feature.
The Mauser website lists a manual cocking system as an option too. Any experience with this? Is it a manual cocker as they state or is it a decocker? I understand the safety on the Blaser allows complete decocking on a loaded chamber in a way that is considered safe. Is this similar?