Doesn't seem to be working, I combed through the page and couldn't find part no. ST-5 anywhere - only ST-6 [which is the charging handle] unfortunately 
Airsoft Forums UK
Egon_247
Ah bugger. I'm sure I've seen them on my search for an ejection port cover. I'll keep looking. ?
BreadyC
What part is actually missing? Just the button head or some of the mechanism and spring inside it?
With some photos and drawings I could probably reproduce you one that will fit and replace the button head, it might be harder to repro intricate features without reference though.
With some photos and drawings I could probably reproduce you one that will fit and replace the button head, it might be harder to repro intricate features without reference though.
pyromancer6
I'll be honest I have no idea, from what I can tell it's just the little spring and the button-head that's missing but I also don't have the aug with me right now so I can't really check - It flew off when I was using it which is why I'm so eager to find a replacement because I'm a little guilty lmao - I can try and get it off my mate so I can see what's actually missing and what's still there. Also @Egon_247that looks like the part that's missing but I'm pretty sure that's for the GBBR GHK aug rather than an AEG - like I said, I'll take a nose at it and see if it'd work or not. Appreciate the responses lads
They don't have a lot in stock though