Any idea what the heck this is? Appears to be built on a S&W .460 or .500 revolver. The stock assembly attaches to the grip and on top of the frame where the rear sight would be. The barrel is definitely custom, but I couldn't make out the markings. This was on Life Below Zero.
I have had 2 cameras converted by Life Pixel to infrared; a Nikon D70 and later. D200. Both were great conversions with no problems. The D200 has the deep IR conversion rendering monochrome images. Any future conversion work I need will be handled by Life Pixel. They did a great job!