I just purchased a brand new Windham Weaponry AR15. I've heard great things about it and decided to take the plunge. I'm brand new to this whole AR15 thing so I'm not totally sure where to proceed from here. I will probably end up customizing this rifle extensively as I get time, but any pointers on where to get started? The gun comes with sights already installed, though the rear sights can be folded down, presumably to allow other rail mounted optics.
Some things I've been thinking about are a new railed handguard, optics and grip. Any ideas or advice? What are considered the top of the line brands for the magazines? Is it generally worth it to buy a foregrip?
Thanks for any and all advice?
Also, as an aside, how does the AR15 compare to a shotgun for home defense?