Ampell Arco 1 plink-n-whiz co2 pistol, made by Shakespeare fishing reels. They where made in 1975 with three models a .177 pellet, a .22 pellet and the bb repeater in this video. "The gun not to have been a commercial success and Ampell Playtime Products went out of business in late 1975. Consequently they are quite rare, particularly in the UK.
A very close replica to the Thompson Contender. , https://youtu.be/QcLpOZbv7Ss
A very close replica to the Thompson Contender. , https://youtu.be/QcLpOZbv7Ss