"note that the way the light hits both cylinders and the bayonet all comes from different directions"
Well, if you're actually trying to photograph something as complex as a firearm, you do a LOT better with multiple light sources than a single light source coming from one direction.
That way you don't have hard shadows and you can reduce glare by using softer lights instead of one very bright one.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.