I got tired of the heavy weight MKM mount mostly due to the steel rod. But I needed to add another rod to reach the end of my suppressor. So I found 5/8 fiberglass rod and replaced the the steel rod it cut the weight in half and is still very sturdy and stiff. It only cost $5 extra dollars than ordering another steel rod to thread into the existing steel rod. I have heard it’s a pain keeping them tight and not shaking loose. Hopefully this will fix my issues.