Atomic (z2?) first stage with no swivel but 5, 6 or 7 LP ?

[stargost]

It seems on the atomic website, the z2/z2x first stage can be offered either with turret 5LP, or with no turret but 7LP.

It seems some Atomics first stage have no turret but 6LP, so not sure what year or version it might correspond to ?

Does anyone know the main differences with these versions ?

Thanks

 

[Scared Silly]

The very early version had 6 lp. Although some may call 6 lp and forget about the 7th that is at the bottom of the turret.