Wildcat bottom pic rail

These are what you need-

the structural fasteners to mount your rail. Don’t even think about just screwing the rail onto the stock. On synthetic stocks screws will wallow out loose and the threads into the stock will be useless-

https://www.amazon.com/gp/aw/d/B0772V352B?psc=1&ref=ppx_pop_mob_b_asin_title

This Atlas 3.5” rail has a curved back side that mounts up perfectly onto the curvature at the wildcats underside of the forearm. It has a QD hole for QD sling attachment-

https://www.amazon.com/gp/aw/d/B003LSKLBQ?psc=1&ref=ppx_pop_mob_b_asin_title


to do the job right you’ll need a 7/8” paddle bit along with some JB Weld to epoxy in the fastener T- nuts. Look up on how to install T- nuts for Atlas bipod rails on the net.