I have a K80 LOGO receiver and iron that I just had service and had a black finish installed in the engraving. The trigger guard had the nickel finish almost gone so I bought a new one from Krieghoff and installed it and a new screw. Nickel has some thinning on bottom edges of the Receiver. Receiver is pull / pull and the hammers are set up for double releases and I have a set of factory releases available for an extra cost if needed. Ser # 12928. (( $5000 Delivered to your FFL in the Lower 48 )) Any questions please send a conv message for info and contact # - Thanks Bob