I have 7 old magazines for my WE M4 and most of them have issues, one plus venting out the side main seal.
Why is there not specific kits available or indeed individual parts easy to find, descriptions not specific as to whether the parts are for short gat or long gat. Also main seals (pictured) are not available in UK it's a nightmare trying to fix leaking mags. Does anyone know where I can get input, output, o rings for both, and the main seals that seal the side of the magazine?