This model is a remix of Eplolako's model. I printed his and painted it (see photos) but it's printed horizontally on the bed from the middle up since he split the entire model down the middle. This causes a very noticeable loss of details in the parts and requires a LOT of gluing (6 parts with no alignment pins)

When I was gluing it I figured out it could be printed as two parts with much better quality oriented vertically which would make for a much faster, easier print with much less post processing. 

My print holds together no problem without any glue since the magazine part is a tight snap fit

I fused together the models for the handle and main body which should be printed upside down with supports (recommend 0.25 mm support Z-distance for PLA printing if you are printing at 0.2mm layer height)
 

All bodies available in a separate file and in a combined file auto oriented for a Ender 3 sized bed

Printed in Prusament Galaxy Black with these settings
 

•  0.2mm Layer height
• 20% infill
• Supports: on
• No brim/raft needed
• Slicing Tolerance: Exclusive (the magazine is a tight fit but if printed right will snap fit with the top and bottom parts!

This took about 14 hours to print on my Ender 3v2 running Klipper at 150 mm/s

This design can be improved upon further, feel free to remix!