I added a few pictures that Mr. Schaefer had sent me awhile ago.
http://www.airgundevelopment.com/custombuild/schaefer4.html
Looks like a great rifle build and that Mr. Schaefer has been very busy building rifles recently. Check out his builds on youtube. Follows the video on the page 4.
I finally got a chance to work a little on the concept 4 rifle. Please checkout the page below to see some updated pictures.
http://airgundevelopment.com/concept4pg4.html
I hope to do more in a few weeks. Going on 4 days of holidays this coming weekend and then hopefully be able to work a few evenings. I hope to be able to finish these rifles before the fall season.