This is a multi-part version of Chamber's Headhunter heavy pistol that I have split into the 3 component colours of the stock appearance: gold, black, and white.
Print settings in image
Dimensions
Total assembled it should be about 340mm (L) x 177mm (H) x 39mm (W) with the flaps in the down position.
Orientation
See image gallery for part orientation. You might want to great a larger footprint of support material just as a preventative measure from it coming loose from the print bed as some parts will have thin walls.
Assembly
Paints
I used Tamiya TS-21 Gold (or TS-87 Titanium Gold for a lighter, duller gold) for the gold pieces. Red and orange paint for the weapon charge slots in the front and the meter on the receiver but not needed. But of course you're welcome to do change the colour scheme to your liking.
Notes
1. Why did I make the ribbed (mid) section as a single piece rather than individual parts?
Mainly to 1) cut down on the number of parts to be printed, 2) to avoid placement and alignment issues between side, and 3) some parts don't have much surface area for you to glue to other parts while other parts have a decent air gap between it and the barrel piece.
This piece will be the most annoying for support removal so take your time.
2. Why aren't the outer pieces not 1 piece?
That's thanks to the little bump on the bottom front of the barrel part and wouldn't work as the front needs to go through the front and the looped piece gets in the way.
While this is a remix, I actually used this model as my base: https://cults3d.com/en/3d-model/game/valorant-chamber-pistol
I used Fusion 360 to make it print ready and the photo is proof it works, even if some parts are a tight fit.
The author hasn't provided the model origin yet.