The Tokyo Marui Glock G17 gen 4 is a little different than the 3 and required some work to get the parts to work.

Here I present to you my modified gen 4 parts:

A barrel originally designed by OpenAirsoft, with a little sanding and racking of the slide I got it to run smoothly. I recommend heating the little connecting piece on the side that the tab from the hopup assembly fits in so that you can slide the inner barrel in and then push it back down flat, otherwise it will snap when installing.

Fiber optic sights by Xdr4g0nX, I modified them to work with .078" TruGlo replacement fibers.

Compensators by Foxstrat, I modified them to sit almost flush with the slide when using the barrel above.

A magplate that I found outside of Thingiverse but was too long for my taste so I shortened it a little.

A back plate that doubles as a flared charging handle.