I spent some happy hours of my recent holiday scanning a nearby field ( just 75 metres from my holiday cottage ) with the 'Mk 1 eyeball' ; the field was recently ploughed and was full of metal.
The road is the Trun/Vimoutiers via Camembert road. German forces here were almost out of the pocket and were under direct fire from Polish and Canadian troops, plus aerial attack. Relics in the field included shell fragments, radio equipment and many twisted pieces of vehicles.
Plus something which looked like a tree root, it was so encrusted with soil. But it was obviously metal, so I took it back and washed it.
It looked interesting, and I showed it to Jagdpanther44 when we met. It was hollow, and contained a compressed spring.
Back home, and after much cleaning with a soft toothbrush, here it is ; -
It's made of stamped metal, the cap on the end is alloy ; I've looked through all my books and checking the exploded views in the invaluable 'Small Arms Of The World' by Smith - I reckon it's a stamped bolt carrier from a Gewehr 41.
What do you think ?