Recieved a returned item with the wrong/used parts - DPM SIG P320 Full Size Barrel Mechanical Recoil Reduction System

Somebody must have bought this kit and taken the good springs, leaving fouled replacement parts. Kit included the same spring with 21 turns and identical gauge stretched to three different lengths. No gold spring. The plugs were obviously used and smelled like an old dirty gun. Optics Planet made returning a breeze with a pre-paid label and RMA number within seconds on their website. I just wish they did a better job of making sure their customers received new parts. Now I have to go to the range tomorrow without my new toy.