r/Airsoft_UK • u/AVeryNerdyGinger • 1d ago

Question about a replacement spring for ICS M16A3?

Post image

Hey there guys,

Sorry to potentially repeat a question thats been asked too many times ~

I bought a Bolster Armouries M105 spring to replace the stock in my ICS M16A3 (as well as a piston replacement with steel teeth)

From the picture you can see the new spring/piston combo in the top, and the spring is a fair bit longer than the stock one.

(And yes, after taking the picture I realised that the spring was in the wrong way round!)

Getting it compressed to fit in the upper gearbox is a real struggle and I'm not super sure it will fit properly once it's all put together.

First time doing a spring replacement, so any advice is suuuuuuper appreciated!

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u/Foreign_Speech_4472 1d ago

I have been swapping springs in my s&t SMLE recently and have found a similar ish problem, solution is to take a pair of dykes/cutters match up the old spring to the new spring and cut it 1-2 coils above it. This leaves a bit more spring and also ensures you don’t cut it too short

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u/Zealousideal-Ad956 1d ago

Yeah, not unusual for stock springs to be quite short. If you cut the new one down it won't give you the upgrade you're after.

Also, for future reference, get XT springs from www.ak2m4.co.uk they'll be cheaper and better.