Bring a few vm's back to life

[Chuck E Ducky]

What’s the benefit of the AGD spring?

[Kit352]

Eliminates the main spring and supposedly gives a massive fps boost, like 30fps. Just shooting it without a Chrono the kick is drastically reduced and it hits trees further away. I suspect it will be less prone to machine gun when air is low.

[Chuck E Ducky]

Interesting you use the silver springs?

Mine doesn’t really have velocity issues but I wonder if it will make it more efficient.

[Kit352]

I have the silver and black springs from the automag. They shoot slightly different but I can't tell what's best until I get to a chrono. Fining tuning velocity will probably be just a spring swap.

[Kit352]

https://paintmagazine.com/on-the-work-bench/pmi-3-vm68-automag-spring-conversion/

Where I got the info from.