G1 leak

[Winters921]

i recently bought my g1 and all it does is leak co2 i put a 12 gram in it leak the whole thing
it appears that its not pentrating the 12 gram enough any help would be great

waht do i do oil it anything
i am new to pistols and any hekp would be great

[20 yr old Faust]

Cock the marker prior to screwing in the 12 gram.

[KIngman-Boy]

I just bought new headphones!