The Model 24 Stielhandgranate grenade makes an appearance in Valkyria Chronicles as part of the large military memorabilia inside the Gunther house. The grenade is described to have been used in "The First War" by Isara, it is used by Alicia. It is also shown being thrown into a room during the second opening song.
RGD-5
The RGD-5 hand grenade is seen in the hands of a wounded Imperial army deserter who uses it as a persuasive tool to hold Welkin and Alicia hostage. This hand grenade is standard issue to the Imperia Army.
Russian Nagant M1895
Maximilian uses a Nagant Revolver. The weapon's cylinder is different from its real-world counterpart, as it appears to have more than six chambers in its cylinder.
Fictional Weapons
NOTE: Valkyria Chronicles contains a large number of fictional weapons that draw inspiration from various weapons from the WWI and WWII period (and thus can easily be mistaken for one such firearm), but are not modeled after any specific weapon.
Fictional Semi-Automatic Pistol
Welkin, Alicia and Faldio make use of a fictional semi-automatic handgun as their primary sidearms, and as such it can be assumed that this weapon is the standard issue handgun of the Gallian armed forces (although it is not seen in any other hands but the protagonists). The design draws some aesthetic influence from the M1911 design.
Fictional Semi-Automatic Rifle
This fictional semi-automatic rifle is the primary rifle of both Gallian Army and the Gallian Militia and are used by all military riflemen, most notably Alicia, Welkin and Faldio. A scoped sniper variant is used by Faldio, Squad 7 members and some Imperial snipers. The weapon draws aesthetic influence from the Gewehr 43 rifle.
Fictional Submachine Gun
A fictional submachine gun that looks like an enlarged MP40 is used by Imperial Army Shocktroopers.
Fictional Assault Rifle
A fictional short-barreled assault rifle appears as a standard arm of the Gallian Military Shocktroopers, notably by Rosie. It appears to be inspired by the AKS-74U.