Ruger AR-556 5.56 NATO M4 Flat-Top 16.1" 30 Rd - $677.93

What is a hobby rifle? If you can't shoot this gun with iron sights accurately then you can't shoot it properly.

It is a flat top, the rear sight is removable. Please do more research and take a rifle class before purchasing. No knowledge = a danger to yourself and others.

I did this to my Saint. I replaced it with a gas block that has milspec rail. Maybe $25 for the gas block if you get a gunsmith probably another $125. Really simple to do and took very little time if you’re comfortable doing the work yourself. Make sure you get all in line

Lower ***

Add a better iron sight like a troy or even a milspec carry handle sight. Proactice your marlsmanship with iron sights before you get a red dot. Red dots don't last forever, and if you can't soot with iron sights then what? An entry level red dot you can go with is dagger defense and it co-witnesses perfectly with that magpul iron sight. I tried the dagger, its cheap but it works and keeps 0.

Out of the box, you picked a great rifle already. You could keep it as is, and just practice more to make yourself preform even better.

1. I'm not a fan of the mil-spec trigger, I have a RR 2-stage. (Most people hate Rock River now for political reasons)
2. Extended take down pins, especially if you intend to use multiple uppers.
3. BAD lever. Some love them, some hate them.
4. A light. Not a laser, a light.
5. More mags for more fun. I love Lancer translucent smoke mags, but there are so many fantastic magazine options it's hard to go wrong.

6* When you get better with Iron Sights, consider an optic. Optics can be a big expensive investment. Go forth and play with a ton of them, hands on, before you start thinking about red dot or illuminated reticle or fixed power scope or variable power scope or......