AGS-17
The AGS-17 has two major variants, the AGS-17A, a remote controlled AGS-17 that is used on Vehicles. While the AGS-17D is also a remote controlled variant but it is used on helicopters. The AGS-17D was more used in Afghanistan, while the AGS-17A has been used more in Chechnya due to the environment. Afghanistan is more mountainous while Chechnya is more urban.