I'm planning a trip to the East Coast for next year. I'd like to see the experimental rifles that led up to the M1. I'm talking about the Bang, Hatcher-Bang, primer actuated Garand, gas operated Garand in 276, Pederson, and Colt-Thompson, etc. Does anyone know if they are still in existence and where they are located? My guess would be Springfield or Aberdeen, but I'd like to know 'fer sure'.