A Calico M950 is seen in "Land of Fuyuki City", present in the arsenal of Kiritsugu Emiya and Maiya Hisau. In the light novels, it's detailed that the duo use it as a backup weapon. Located in an arms cache case brought by Kiritsugu in "The Evil Forest". First used in "The Evil Forest" and "The Magus Killer".
Maiya Hisau pulls out a full-sized 2nd generation Glock 17 pistol as a backup weapon after losing her Steyr AUG from a surprise visit by Kirei Kotomine, first seen in "Night of Schemes". Located in an arms cache case brought by Kiritsugu in "The Evil Forest" and wielded once again by Maiya in "The Magus Killer".
A Thompson Arms Contender pistol was used by Kiritsugu Emiya as his main sidearm in the 4th Holy Grail War, which appeared in both the anime and in the light novel series. It first appeared in "Land of Fuyuki City". In the anime, you can tell that it's the .223 Remington version due to the presence of the rear sights, which was also shown in the said episode. In the light novel series, it is specifically detailed to have had a barrel swap and utilize .30-06 cartridges. This pistol utilizes custom-made bullets called "Origin Bullets", created from magic which involves Kiritsugu's rib bones.
Kayneth uses a Webley Mk. IV to assassinate Risei while he was distracted in "The End of Honor". The revolver seems to have a shorter barrel than what the Mk. IV has, as well as a slightly different grip.
A Steyr AUG A1 with a black plastic body was used by Maiya Hisau as her main weapon in the anime, which was also portrayed in the light novel during the 4th Holy Grail War. She first uses it in "Blade of the Demonic Spear". Located in an arms cache case brought by Kiritsugu in "The Evil Forest".
Natalia in "Distant Memories" used a sawed off Remington 870 as her main weapon in battling the ghouls in Alimango island. It's seen also in "Where Justice in Found" in a hidden arms cache placed in Natalia's luggage and being carried by Kiritsugu.
A Walther WA 2000 is shown in "Land of Fuyuki City", serving as Kiritsugu Emiya's main weapon of choice in the series, as well as in the light novel during the 4th Holy Grail War. The only difference is that Kiritsugu had replaced the Schmidt & Bender 2.5–10X telescopic sight with either a AN/PVS04 or a IR heat vision scopes to locate the heat signatures of magi hiding from physical sight. He first uses it in "Blade of the Demonic Spear".
Later in "The Bloody Battle of Mion River", Kiritsugu uses the WA 2000 to assassinate Ryunosuke near the shore of Mion River to prevent his Servant Caster from harming Fuyuki City any further.
What appears to be M67 fragmentation grenades are among the weapons in the arms cache assembled by Maiya in the local Fuyuki Hotel in "Land of Fuyuki City".
M67 High Explosive-Fragmentation hand grenade.Error creating thumbnail: File missingKiritsugu inspecting the weapons assembled by Maiya. The M67s are located beside the WA 2000.
M18 Smoke Grenade
A M18 Smoke Grenade is thrown by Kiritsugu to distract Kirei, allowing Maiya to escape in "Night of Schemes". Has an error with M78 written in place of M18.
A Model 7290 flashbang grenade is visually inspected by Kiritsugu from the arms cache Maiya assembled in the local Fuyuki Hotel in "Land of Fuyuki City".
A Hughes M230 Chaingun was seen fired by an Apache gunship on the television set in Waver's room when he was staying with the Mackenzies in Fuyuki City in "Land of Fuyuki City".
Error creating thumbnail: File missingHughes/Alliant Techsystems M230 30mm Chain Gun.Error creating thumbnail: File missingA shot of the Apache firing the Hughes 230 from a TV set while Rider was watching in Waver's room. Kinda funny for a split second, the Apache in the foreground has its rotors missing.
M61 Vulcan
A couple of Japanese Air Self-Defense Force F-15J fighters are armed with the M61 Vulcan as its main machine gun before they began to engage Caster in "The Bloody Battle of Mion River". Berserker controls one of the two F-15Js against Gilgamesh as its Noble Phantasm after Caster's tentacle monster killed the other pilot by consuming his fighter. Berserker uses the M61 as its Noble Phantasm in "The Golden Radiance" before Gilgamesh destroys it.
A young Kiritsugu uses a FIM-92A Stinger in "Where Justice is Found" to take down an Airbus passenger jets full of ghouls to prevent it from reaching La Guardia airport.
Plastic Explosives are seen next to the Calico M950, which are among the weapons in the arms cache assembled by Maiya in the local Fuyuki Hotel in "Land of Fuyuki City". Later seen in "The Evil Forest". Located in an arms cache case brought by Kiritsugu in "The Evil Forest".
Error creating thumbnail: File missingKiritsugu inspecting the weapons assembled by Maiya. The plastic explosives are located next to the Calico M950.Error creating thumbnail: File missingThe arms case Kiritsugu brought with him in "The Evil Forest". From left to right: Two blocks of plastic explosive, Calico M950, Glock 17 with 2 pistol magazines, the AN/PVS04 and the infrared scope and a Steyr AUG A1.