I am searching for the chamber blueprints of the A2 rifle or carbine... As long it's the m855 chamber. I have a copy of the a1 barrel chamber but I need a copy of the newest for a study and testing.

I am also looking for a copy of the a1 disco and trigger.

Got some L1A1 blueprints if interested by a trade of m16 blueprints. Barrel, bolt, carrier,... Even receivers.