I just put in Google "crosman m4 co2" this was the this was fifth one down
https://www.surplusstore.co.uk/crosm...4-co2-177.html
Not the full auto version obviously
Handled Crosman M4 in RFD.
Sturdy and well made.
Trouble is no full auto.
When you see the American model in full auto it’s worth £295.
Our semi auto,maybe not.