Need advise for installing recessed anschutz rail on fore grip of my Crickets

It's not difficult to do an inlay route- groove. It can be done in a several different ways. Whether recessing a short section or an entire track. You can use a router with the appropriate bit and route from the top using a jig than limits the router movement. you would level the flat part of your forestock to jig. the router would be on top.(Normand from DiscosRUS had such a jig he was using it to top route the 7/8"on the stocks for a Disco) Another way would be the use of a router table (needs to be short as all you can run is the level part in front of your Caldwell bag in the picture. Using this technique you will have the round radius at the beginning of your plunge route or at the end. To square up these grooves you need to take a chisel and square up your groove. This leads to yet another way of accomplishing the task without power. Simply scribe your lines, then walk a chisel around your pattern use a chisel smaller than the finished width and lift the wood to the lines, then use the correct width to clean the channel. An experienced woodworker can complete it quicker than it takes to set up the jig. The side cuts are all that is visible and screw up in depth are hidden by the over lay, for example think of a door hinge