@jakester125: Nothing is integrated there. I never decided on anything and so far, it's still just waiting for something. Maybe an AT2K, but I'm not sure just yet. Now it just serves as a comfy hand rest.
Forgive me if I've been vague, but what is the piece that serves as a comfy hand rest.
Thank you for posting this build. I'm hoping to make a breech for my long shot similar to this one. I have to say yours looks very clean.
What is integrated into the above long shot? Although yours specifically uses Stefans, it still appears possible to use stock streamlines with minor modification to the build.