You can get either the Vortex Venom red dot sight or the Vortex Viper red dot sight. The Venom red dot and viper red dot are both built for accurate and precise target shooting, irrespective of distance, and they are able to lock on target even at a fast travelling speed.
Both venom and viper are non-magnifying reflectors for handguns and rifles. They use a red led emitter (light-emitting diode LED) to give you a target point in the form of a red dot light. I personally prefer the Venom red dot to the viper, and I would also recommend it to you if you want a more deadly shotgun, rifle, or pistol.I have used it on my pistol, M-16, and AR-15.
The Vortex Venom red dot comes with a 3 MOA and 6 MOA options and allows you to use anyone you want based on your preference. While the viper only comes with a 6 MOA red dot option.