McMillan now makes 2″ and 4″ picatinny rails that can be installed on stocks and used for attaching bipods, monopods, loops, lights, etc. The 4″ pic rail has a hole for a quick detach push button sling loop (not included) where the 2″ rail is meant for bipod and monopod attachment only. Black is anodized and the other 3 colors are cerakoted.
Picatinny rail sizes:
4″ OAL (over all length), 3″ hole spacing
2″ OAL, 1.6″ hole spacing
Mounting hardware and screws are provided to install a rail onto a stocks forend.