Hey Trevor- YouTube is not letting me directly reply to your comment so hopefully you see this post. The SiRT gun is a separate stand alone item. I just added this to the video description:
Chris is using a SiRT laser pistol by Next Level Training. Get 15% or 20% off (LE/military only) using codes TS4 or TS4LE: http://nextleveltraining.com/product_list
Let me know if you have any other questions!