I have a new (couple months) Shorty AK and I have to crank the windage knob quite a bit to the right to zero. I've gone through the zero procedure twice with the exact same result. It is less than 12 clicks but presents a problem with a see through carry handle mount. Also the elevation knob and charging handle are purple. Can I send my upper back to you for repair/replacement? If not, what can I do to resolve these issues. If I can, how long will it take to get it back? I live in New Hampshire so shipping time should be minimal.