Just search P14 rifle and you’ll get hundreds of results. The handguard nests inside the handguard ring which is right against the front face of the receiver.
I did google it but no luck in getting a nice clear closeup pic. An the ring doesnt rest against the front of the receiver, it rides on top of the receiver just in front of the "bulge" on the right hand side. What I was needing to know was how much clearance between the bulge and the ring. Potashminer sent me some nice clear pics to show the location which ends up being right tight to the "bulge".