As the Wildcat MK II has a synthetic stock it appears it has a small problem. I tried to use the small Picatinny rail for a bi-pod. and found that Wildcat stock could not support the bi-pod. It appears that Fx used a screw that is about 1/2 inch long and dia that is a #6 one pulled right out of the stock the first time I tried to deploy the bi-pod legs. I switched the mounting screws to #10 and 1 inch long so far so good