In "The Winter Line" (S3E02), Maeve (Thandie Newton) is seen using what appears to be an anachronistic Beretta Model 70 pistol in a World War II-themed world.
What appears to be a suppressed Full Conceal M3D pistol (a Glock 19 with a folding grip frame) is used by Caleb Nichols (Aaron Paul) in "The Mother of Exiles" (S3E04).
IMI Desert Eagle Mark XIX
When he is confronted by security in the Delos building, William (Ed Harris) pulls what appears to be a stainless Desert Eagle Mark XIX pistol in "Crisis Theory" (S3E08).
[[File:WestS3E08 19.jpg|600px|thumb|none| William (Ed Harris) pulls what appears to be a stainless Desert Eagle Mark XIX pistol during a confrontation in "Crisis Theory" (S3E08).
SIG-Sauer P250 Compact
What appears to be a SIG-Sauer P250 Compact pistol is used by Martin (Tommy Flanagan) in "The Mother of Exiles" (S3E04) and "Parce Dominae" (S3E01).
[[File:WestS3E01 02.jpg|600px|thumb|none|Martin (Tommy Flanagan) holds what appears to be a SIG-Sauer P250 Compact pistol in "Parce Dominae" (S3E01). ]]
Luger P08
In "The Winter Line" (S3E02), what appears to be a Luger P08 is used by a German officer in a World War II-themed world.
Submachine Guns
MP40
The MP40 submachine gun is used by German forces in a World War II-themed world.
FN P90 TR
The Westworld QA security force continue to carry customized FN P90 TRs as their weapon of choice in the series.
Salient Arms International GRY rifles equipped with what appears to be Trijicon MRO sights and Magpul PMAG D-60 drum magazines are used by SFPD Officers in "Crisis Theory" (S3E08). Bernard Lowe (Jeffrey Wright) holds one after disarming one of the officers.
Unknown Sniper Rifle
Dolores (Evan Rachel Wood) uses an unknown sniper rifle in "Passed Pawn" (S3E07).