Well, clearly in a B7 Carry On film the handguns would be a LOT bigger (fnaar, fnaar).
BLAKE (Sid James) [speaking into teleport bracelet after landing on damp planet] Watch out for the sodden ground...
SERVALAN (Hattie Jacques) [appears from behind tree holding VERY LARGE gun]: There's no call for that sort of language.
I'm pretty sure Barbara Windsor would be Jenna (and, for that matter, Miss Brahms in Are You Being Liberated? in which case Mrs. Cally Slocombe would keep wittering about accommodations for her moondisk...)
The following is an actual quote from Harlan Kennedy's article, "Carry On Up Your Comment" in the January/February 1993 issue of Film Comment:
"The films perpetrated the following insults to pure cinema: *The camera was used baldly and boldly as a recording instrument for stand-and-deliver performances *The sets were knocked up as quickly and cheaply as for a school play, and looked it. Either that or they were cannibalized from other film sets at the same studio *The characters were walking stereotypes used and reused from film to film."
-(Y)