Section 10K. (a) Whoever in the nighttime or the daytime breaks and enters any building in which a firearm retailer, wholesaler or manufacturer conducts business shall be punished by imprisonment in the state prison for not more than 10 years or by imprisonment in the house of correction for not more than 21/2 years or by a fine of not more than $10,000, or by both such fine and imprisonment.
(b) Whoever in the nighttime or the daytime breaks and enters any building in which a firearm retailer, wholesaler or manufacturer conducts business with the intent to unlawfully obtain a firearm, rifle, shotgun, machine gun or ammunition shall be punished by imprisonment in the state prison for not more than 10 years or by imprisonment in the house of correction for not more than 21/2 years or by a fine of not more than $10,000, or by both such fine and imprisonment.
(c) Whoever unlawfully obtains a firearm, rifle, shotgun, machine gun or ammunition by means of breaking and entering, in the nighttime or the daytime, any building in which a firearm retailer, wholesaler or manufacturer conducts business and who unlawfully distributes said firearm, rifle, shotgun, machine gun or ammunition shall be punished by imprisonment in the state prison for not more than 20 years or by imprisonment in the house of correction for not more than 21/2 years or by a fine of not more than $10,000, or by both such fine and imprisonment.