Carabine-mitrailleuse Ribeyrolles Modèle 1918
from Girls' Frontline
Origin
France
The Ribeyrolles 1918 was an attempt to manufacture an automatic rifle for the French forces. Its official name was Carabine Mitrailleuse 1918 (Machine Carbine 1918 in English). Ribeyrolles was chambered using experimental 8×35 mm rounds, straight blow-back, and fed from a 25 round magazine. The gun itself had an effective range of 400 meters. The cartridge, arguably the first purpose-built intermediate cartridge, was obtained by necking it down with .351 Winchester Self-Loading ammo. Ribeyrolles had the distinction of being fitted with a lightweight bipod on the front and a rifle bayonet identical to that of a Berthier Model 1907/15

Girls' Frontline
Girls' Frontline is a mobile strategy game developed by MICA Team, a Chinese company. It is a moe anthropomorphism game in which the player controls echelons of characters, each of which are based on actual guns. The game was released in Mainland China on 20 May 2016, and in Hong Kong and Taiwan on 18 January 2017. It was also released in South Korea on 30 June 2017. The English version published by SUNBORN Network Technology was released on May 8, 2018. This game is a prequel of another game developed by the same company called Bakery Girls.