Hi bagic,
As far as I know, there is no available AR image for the GNS3, you can try the EVE-NG which support the AR1000V image.
BTW, you are recommended to test the features in the eNSP firstly. If it's working, then I think you might not necessary to test that in EVE-NG, cause it's a little complicated of installing the images in EVE-NG.