Using a set screw as a velocity "choke"

[Fireburns44]

Hey

I'm trying to figure out a way to create a velocity adjuster on the Umarex T4E HDS shotgun. It's cool as all hell, but goddamn useless without velocity adjustment. I have removed the factory installed velocity restriction (lots of youtube videos showing how), and now I'm wondering if I could do the same thing, but use a set screw in it's place.

After looking at my T15 and many 98's, it seems they use a set screw "choke" to adjust velocity. My question is, will it leak past the set screw as this section is constantly pressurized?

Here is a link to some pictures.

https://imgur.com/a/O8thL3z

Hopefully someone has some insight!

Thanks

[Grendel]

Yes it would leak and most likely get worse over time as used given that appears to be aluminum you would be threading. You would need to figure out a live seal to restrict air volume there.

[The Inflicted]

I've solved this. The solution isn't to remove the restrictor/devolumizer entirely, but to drill two 3/16" ports. I'm working on a video.