Hmm, not bad, but compared to some of your other works, this one seems a little bit more like a work in progress than a finished work compared to some of your others, like it's not quite finished yet. Like it needs a few more touches to make it feel whole and complete.

I think it's the black plastic bits, maybe some darker silver for those portions would make them seem less out of place? And that ridge along the barrel is dying for a faded metallic red. But the overall simplicity of the design is absolutely retro and cool.