Look at the bottom of the slide, just foward of the frame.
This number can be obtained by calling our customer service group (60). From there, utilize the serial number identifier and visual inspection. This pistol includes one magazine, holster, lock, and original box. If you have questions regarding our products and accessories, or ordering and shipping, please call our Customer Service Department at 60 and then press 1, or refer to our FAQ page for answers to common questions.