The M1870 Italian Vetterli is a modification of the Swiss M1869 Vetterli rifle (simplified to permit mass production) that was used by the Italian army from 1870 to at least 1941. Initially chambered for the 10.35x47mmR black powder centerfire cartridge, the Vetterli was initially a single-shot weapon, however, the M1870/87 rifle (represented in-game) was updated to include a 4-round box magazine loaded with a steel- and wood charger clip.
In 1891 the Vetterli was displaced from frontline service by the new Carcano rifle but remained in used by rear-line units with most of the existing rifles being converted to fire the 6.5x52mm Carcano cartridge in addition to being granted a 6-round magazine capacity, leading to the M1870/87/15 version.
In 1938, with the Vetterli still in service with rear-line troops, plans were made to convert the weapons a second time, this time to the improved 7.35x51mm cartridge, used in the updated Carcano M1938 rifle.
The plans to convert the rifles again never came to fruition, as Italy's entry into World War II prevented the new rifle and cartridge from being adopted and the Vetterli was withdrawn from service for good in 1941.
— In-game description
There are two variants of the Vetterli-Vitali M1870/87: Infantry and Carbine.
The Vetterli-Vitali M1870/87 Infantry is the basic variant of the rifle.
The Vetterli-Vitali M1870/87 Carbine variant has a shorter barrel length and is equipped with a magnified aperture sight, suitable for medium range engagements.