I've heard that from numerous people now. I actually just ordered a new sf to shoot and carry at work. I'm also an amateur collector of HKs, and really anything that catches my eye. Before I even knew how rare they were I wanted one. Many of my HKs have the Picatinny and I just find them appealing. Reliability of the 21 with the picatinny isn't a huge issue. It will just be sitting next to my tan framed Mark 23 anyways. Ha.
Thanks for the response.
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