Absolutely nothing wrong with an AR as your primary HD gun. If you're talking truly "necessary" add-ons, then you can do the following and no more:
- Weapon light with as many lumens as you can afford. Don't buy into the BS that 800 lumens is too many, because that's all it is.
- Sling
- Red dot optic
- Irons
- Some kind of blast management system that directs gasses and noise forward. A suppressor is ideal, but....
Also, that's assuming all quality, duty-grade parts. Anything above and beyond that, for my money, are wants. An SBR set up thus will be fun to shoot at the range, and will do work as an HD ratchet.
- Weapon light with as many lumens as you can afford. Don't buy into the BS that 800 lumens is too many, because that's all it is.
- Sling
- Red dot optic
- Irons
- Some kind of blast management system that directs gasses and noise forward. A suppressor is ideal, but....
Also, that's assuming all quality, duty-grade parts. Anything above and beyond that, for my money, are wants. An SBR set up thus will be fun to shoot at the range, and will do work as an HD ratchet.