ARs are actually the easiest of long arms to conceal. Several specialized variants can be had that go into a specialized Storm case, but it's also possible to hide a short bbl variant under a coat.

It's the accessories really that can make one useful, and the same set of accessories can work on many guns. Downside is that they are expensive. The PVS-14 (in -17 mode as made by ITT) is part of that equation. Sticking on a PEQ-2 or similar IR illuminator/laser is another part. Sticking a suppressor on is the third leg on that stool. Quiet, no muzzle flash, and out to 100 yards, you don't even need the Aimpoint, just follow the IR aiming spot that only someone with NVG can see.

Expensive, but if people are what one worries about, such a set up, combined with a nice daytime optic allowing rapid target aquisition, well that will let someone do interesting things.

All that stuff is expensive though. A first rate PVS will run perhaps 3600 for it alone. The PEQ-2 another grand or more. Figure at least that much and likely more for the daytime optic, plus the cost of a suppressor and transfer tax... It's pricey. Even more so if someone buys good body armor and rifle plates to go with their weapon.

Doesn't really matter the platform so much if a person can afford those accessories.

Like everything else, it's a cost benefit equation. If someone is worried about "things" and really wants an advantage, certain gear - and proper training - gives a very large edge.

If one is going to forage and just try to hunt for their supper? A .22 rifle, most any will do, and a handgun also so chambered ought do nicely.