I'm still considering buying an AR-15, but have come to the realization that I know very little about them.
I know I want a 16" barrel, I pretty sure I'll just stick with the 5.56. I know I'll probably put some kind of optic on it. I have an EOtech 512 that I could move from another rifle, but I'm also considering going with some type of low power scope for magnification. One question is that I've noticed that many of the flat top models also have the tall A2 type front sight. Does this get in the way when using optics by interfering with the field of view? The flip up front and rear sights look like a good idea, but they also look like they're sticking up there in the open just begging to be damaged. I do want good back up iron sights just in case. Opinions on those? Piston driven or not? Any real advantage to it?
I've spent the last 40+ years avoiding ARs and wasn't the least bit interested in learning anything about them. Now that I'm interested, I find myself woefully uneducated. So fill me in. What should I be looking for? What works and what doesn't?
If I buy one, and that still "IF", I want to set it up for close to medium range use out to maybe 150 yards. I have other rifles for long range use. What should I be looking for?