"The Mummy films did have many cool firearms & weapons of the era."
It was actually one of the most accurate, from a firearms standpoing, movies I've ever seen.
There was only one glaring error that I saw, and that was forgiveable...
The Mahdi or whatever they were called troops fighting the French Legionairs at the beginning of the movie seemed to be armed with Mauser rifles that weren't introduced until the early 1930s.
What REALLY impressed the hell out of me, though, was the fact that the Legion troops were armed with Mle 1886 Lebel rifles and O'Connell is shown single feeding his rifle (period correct tactics).
One of the characters in The Mummy (Burns) even carried a Mark V Webley.
"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.