Can you actually get numbers on these things? Maybe get a hold of sales or ask some techs at your field about how many they work on vs how many are on the field. Also combat machines cannot be more durable than a cyma ak as combat machines are plastic with v2 gearboxes while cymas are full metal with v3 gearboxes, it just doesn't work that way. I never said that aks were comparable to m4s in performance as it's apples to oranges, my argument was for longevity, price and how good the deal is(full metal with v3 130$ vs plastic with v2 200$) failure rate is within the 99.999999% range for both weapons when firing so that isnt it.
Good for them, also I know this is conjecture but I think it means something. I heard that v3 gearboxes are easier to open up and work on, I think that it has to do with wiring and placement of parts and dissasembility of an ak but I wouldn't know as I don't do research on that as im not a tech.
If you want to play for more often you need a good gun, and here are the points as to why aks are better.
Longevity, we have stories of aks lasting 9 years without having to open them up. We calso have stories of 9 year old well guns but they lose all their externals and stuff.
Pointing, aks have a thin barrel that doesnt have alot of things on it so it points better than a gun with a thick cover on it.
Magazines, ak high caps hold more bbs, stay in the magwell without modification.
Rails, get a railed ak if you wanna add stupid stuff to it.
Sights, ak sights are pistol sights and are better for tracking targets as they have an open top. They are made for the distances you are engaging at for airsoft.
Looks, you can stain wood, gloss it, oil it, make it funky, do whatever you want with the wood but you can't do that with an m4 as they have no wood.
Modification, v3 gearboxes have wiring on the outside, thats all I know.
Handling, it weighs 7.5 pounds, if you can't handle that then your either 13 or out of shape, if your 13 just get a 74u.