For Sale: k-80 Double release parts These were installed by Krieghoff in my K-80. The parts are Krieghoff parts. This is all you need to make your K-80 into a Double Release. I have since changed back to Pull/Pull in this receiver. They were only in the gun less than six months. I paid $1100.00 for the install. $350 for the parts, shipped. The picture is not the best as it shows discoloration. The parts are not discolored, it is a reflection of the room color.