Because Browning transferred his pistol production right to Colt Company in the United States, the company also produced a large number of Browning pistols, which were called "Colt-Browning", and the pistols produced in Belgium were also called "FN- Browning" accordingly. Colt's products are marked with the company name on the left side of the sleeve, with the word "Colt" above the grip guard, and the pattern "Immediately" printed on the left side of the guard and sleeve; On the other hand, the upper end of the Belgian gun handle is a combination of two capital letters "FN", and two lines are engraved on the left side of the sleeve. The upper line is the French full name of the Gestalt national arsenal, and the lower line is "Browing's Patent Depose" in English, indicating that Browning patent owns it.