Complex sentence: A small number of the revolvers were purchased by the United States Army in 1875, but due to its lesser power compaired to the Colt.45 it was never adopted as the official side arm of the Army.
Split into simpler sentences: A small number of the revolvers were purchased by the United States Army in 1875. But due to its lesser power compaired to the Colt.45 it was never adopted as the official side arm of the Army.