well yes or no ... it is a Constabulary carbine
The Philippine Constabulary were the native police established in 1902 by Tafts Philippine Commission which oversaw civil affairs of the Philippine Islands. They were law enforcement officers paid by the Civil Philippine Commission. Similar to the US Marshals in America, Philippine Constabulary officers were not limited to a jurisdiction. They had the capabilities to cross county lines(in this case, provinces and regions). The Philippine Constabulary were originally issued old US military stock Springfield Trapdoor single-shot 45 rifles from the Indian Wars. During the pacification of the islands after the Phil-Am War, the Trapdoor rifle proved to be inferior when fighting in the dense terrains of the Visayas and Mindanao regions where combatants would rush out in hoards. After the first initial shot, reloading another round became near impossible. As many PC inspectors complained: the Trapdoor rifle became a one shot club.
The Springfield Trapdoors were replaced by the Krag Carbines in early 1906. Unique to only the Philippines, the Krag full length rifles were modified and cut down to a shorter size at the POD(Philippine Ordnance Depot) in Intramurous. The original purchase price for each Krag, $6.00. The Krag Constabulary Carbine would also be short lived, they would later be replaced by Springfield M1903 rifles by 1910(but Krags would still be in service until 1917). Less than a handful of these Philippine Constabulary Krag Carbines exist today. Making them the mostly highly sought after and prized rifle of all Krag models by gun collectors and enthusiasts. These were made (about 4000) using the carbine barrel and configured rifle stocks as short rifles.
Note last photo is from the internet not mine ....I'm repairing the wrist on mine those photos will be forth coming