Burris Demo Products Burris demo products have been slightly used for display or demonstrations by Burris during outdoor industry events. They may exhibit minor cosmetic imperfections that will vary from demo product to product. Burris demo products and their included accessories are guaranteed by Burris to operate to the standards for a new product. All Burris demo products are covered by the Burris Forever Warranty View Warranty Instant dot-on-target accuracy for any firearm from handgun to shotgun. A great choice for 3-Gun and wing shooting, and any use from patrol to plinking. Multiple reticle options, massive battery life and 4 different models make FastFire 4 the most versatile red dot reflex you can mount. Everything you loved about the Burris FastFire 3 plus... Toggle between four different reticle options Larger sight window for faster target acquisition Longer battery life - up to 26k hours on medium brightness Brighter aiming point Optional screw-on weather shield for a completely enclosed sight Auto-Brightness & Auto-shutoff after 8 hours Lightweight at 1.6 oz DEMO items may or may not include accessories.