Bought the G II over a decade ago. Use it for hunting deer and turkey. Light duty. Lately, however, I’ve needed it for 40-45 lb of stuff. The frame completely changes the functionality and versatility of the bag. If you get a G II then automatically add the frame to the cart. A must have.
I have a 10 year old gunslinger and I was worried it might not work, but it works like a dream - no issues. Definitely recommend this to anyone who wants a little .ore support in the pack.