looking for custom lower receiver part
 

as the title says I am looking for a custom lower receiver for AEG. just like the regular AEG lower you get from VFC, but the buffer tube attachment should be like a gas gun. Link for reference:
https://truenortharms.com/collection...receiver-parts

any ideas if such a thing exists? if yes how can I order.

Assuming such a part does not exists (yet?), can a CNC professional modify an existing lower to match this? how easy/pricy this may be?

You'd have to get one modified since importing receivers in Canada is prohibited.

If I remember right, zci has a lower like that, and I think too the e&l ar15 aeg is like that

ARES M4 have the threads for a receiver extension. Real receiver extensions work on them.

May I ask: why?

Find a boneyard gun.

Simple, Quick Spring Change. the only reason I need to open my gun is to change springs. I got quick spring change gearboxes but still the hassle of removing the lower is not something I want to go through.

What do you mean? Do you mean to look for a gun that already has this?

The qd spring guide in my e&c gearbox fits through the hole on the back of my g&g lower once the buffer adapter is screwed out. Those same lowers are on clearance at buyairsoft in the boneyard FYI...

https://www.buyairsoft.ca/media/cata...clipped1_2.jpg

Right find something with a blown gearbox etc. for cheap. If you go to WGC you can see quite a few VFC lowers for AEGs that have the threaded buffer tube.