The GSG-5P is an identical replication of the MP5P, except one great thing: It's a .22 caliber. Because of the low cost of ammunition the GSG-5P makes a perfect plinking rifle, training rifle, or a serious varmint hunting rifle. Nothing of its kind has ever been introduced in the United States. The user will be impressed with its weight and performance. If you are a varmint hunter, you will be encouraged by all the options the GSG-5P has to offer with its railing system, faux supressor and easy change magazine. For training purposes, the GSG-5P is a low-cost alternative for Law Enforcement agencies and departments that use MP5Ps in the field.