On that flat latch, I used a 1200 watt second "Alien Bee" strobe with a 20" pan reflector and a softening scrim over the pan.
I tilted the strobe, on a light stand, up towards my (mostly) white ceiling and arranged the weapon so the white ceiling was reflected in the sideplate.
I used a white foamcore board on each side to fill any deep shadows.
The Canon EOS 20 camera was on a tripod so, once I found the correct angle for the desired reflected light, I could tighten it all down and assure repeatable results as I bracketed the exposures with f/stops.
I used 2 applcations of unsharp mask at 50% in Photoshop, cropped to size, and, "there she is"!
Thanks for asking,