Having a less expensive rifle optic will leave you without a bullet drop compensator. If you want to adjust your scope you will have to go to the range and use the official calibrated American penny, and zero your rifle. Some high end scopes have optional turret adapters, but I have not found any for my cheap NC Star scope. So being an avid DIY'r, I dug through my parts drawer and came up with this combination.
Using an old volume potentiometer and a Radio Shack knob, I build a turret for my scope.
Caution, with any DIY mod you will have to take your time and there is always a chance of ruining your dust cap.
DO NOT MODIFY A LOADED WEAPON, CLEAR YOUR RIFLE AND REMOVE THE OPTIC.
Step 1: Potentiometer
A standard $2 potentiometer has an aluminum shaft; which is machined for a smooth fit. First you will have to remove the shaft from the potentiometer.
Use a small screwdriver to bend the tabs and a pair of needle nose pliers to remove the case.