Hi the working is the same as a Airforce condor .In .22 the barrel is 28 inches with a scope of4-16x40 AOE it wight is +- 4 kg with a ajustmint for the spring tention lengthe is 1.2meters with sepressor ft/s I do not know but estemit whould be 1100 ft/S depent on spring tention and settings . I boul4d this in my work shop mostly out of alumunium.Good for medium game rabists.possims