KJW Co2 mag help

[novioman]

Dropped my KJW Co2 mag, straight down on to the feed lips, smashed to pieces.?

Found a place selling replacement feed lips. ?

Found all the parts on the floor luckily, even this tiny spring. Not 100% sure where it goes, but it seems to fit as I photographed here. 
Is this correct place for the spring can anyone tell me.

Thanks in advance 
 

View attachment 151455

 

[Lyndication]

Probably the spring that acts against the slide lockback lever

 

[novioman]

Probably the spring that acts against the slide lockback lever

Just found an exploded diagram, looks like I’am missing part 83 the follower lever.

View attachment 151463

 

[novioman]

So I’am wondering if the mag will still feed bb’s o.k and just not lock back on empty.

UPDATE,

Found it on the floor, lucky I didn’t hoover today.?

View attachment 151464

 

[novioman]

So bit confused where the spring sits 

 

[ButcherBill]

So bit confused where the spring sits 

it sits on the nipple... oo-er.

View attachment 151465

 

[novioman]

it sits on the nipple... oo-er.

View attachment 151465

Hope this is right, fiddly to get the spring back in.

View attachment 151466