Adam Savage of Mythbusters fame visited with Blade Runner 2049 prop master Doug Harlocker to lay hands on more than a dozen blasters from both the classic original film, as well as the new models.
Rick Deckard’s original LAPD 2019 Blaster was based on a Charter Arms Bulldog .44SPL revolver inside a Steyr Mannlicher .222 Model S bolt-action rifle receiver with some added extras to make it all work. This enabled the gun to fire blanks for the film, as noted by the Internet Movie Firearms Database.
Well, unfortunately, the new model is not built around two different real firearms but uses a single LED with the muzzle flash added later in post-production via CGI.
Talk about tears in rain…
Anyway, if this has you wanting to know more about the OG Ford piece, check out the below from 2016 with the original from the collection of Dan Lanigan with Mammoth Props.