I Come in Peace
Sorry, but ---- with doing any images, much less screen caps. Small adjustments, but gotta love how it lit up the night...
However, from IMFDB:
The alien's pulse weapon used in the film is in reality a Calico M950 that's been fitted with with a shorter than standard barrel, a custom barrel shroud and some other decorative attachments to the pistol such as LED switches to designate the level of power released.
www.imfdb.org
PS Above I used, then replaced with ----, a five letter word I THOUGHT was a euphemism, so I will be even more cautious in the future.