My opinion fwiw. Assuming you're looking at a 5.56 and that you're talking about deer hunting. The 5.56 doesn't carry enough downrange energy to be a true long range caliber. The little bit of extra velocity that you get from the longer barrel isn't going to extend the useful range. If you like the 16" barrel get it, same with the collapsible stock. Keep the barrel's twist rate in mind when selecting a rifle, you need a fast twist to stabilize the heavier hunting bullets. Hopefully I'll get to try mine out on a deer this year. I have a Daniel Defense DDM4 V4, it has a 16" 1-7" twist barrel. I have a Nikon P223 fixed 3 power scope and I use Sierra game-king 65 grain bullets.