Okla. Stat. tit. 21, § 1303

Any person, while masked or in disguise, who shall assault another with a dangerous weapon, or other instrument of punishment, shall be deemed guilty of a Class B5 felony offense, and upon conviction thereof shall be punishable by a fine of not less than One Hundred Dollars ($100.00) nor more than Five Hundred Dollars ($500.00), and by imprisonment in the State Penitentiary for a term of not less than five (5) years nor more than twenty (20) years.