Out of spec - Firefield Scarab 9-12in Two-Piece M-LOK Bipod

I was excited to try this as a cheaper alternative to the many more expensive bipods, for use on one of my precision bolt action rifles. However, this would not mount on my rifle. The MLOK pins on the one I received are out of spec by 0.004" or 4 thou of an inch. I've tried to force them in the slot but it is marring the aluminum these are made of. It had this issue on about 50% of the various MLOK rails and rifles I have.
I took measurements with my caliper. I had to file down the middle pin on one side to make it fit.