I haven't really had much time to work on this thaang for a while due to school and stuff but I'm gonna go ahead and make a thread so I can post updates and hopefully garner some critique.
This model is based off of a concept by the amazing Pavel Proskurin:
https://www.artstation.com/artwork/YRl9q 
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Replies
Nice!
Thank you both
Edit: I changed the lighting on that pic so it wouldn't look so uhhh
Also in the coming days I will be re doing a lot of stuff as I wanted to fix the fucked up knurling area properly so I had to change some UVs and rebake some stuff
Also all renders have been done in Toolbag 3.
Huge thanks dude, been using a lot of your textures as inspiration on this one
Had some more time to jump on and do some work this afternoon, I added some soft friction wear near some areas of contact and made some big changes to the metal on that weird track piece the slide sits within.
Here's one:
Here's another:
Hope that helps!
Anyways, I've just finished up the final renders for this thing and put it on ArtStation:
https://www.artstation.com/artwork/Q0a9l