Wrap Magazine Release
There's a number of folks manufacturing wrap around magazine releases, but this is hands down one of the best. It matches the contours of the factory trigger housing significantly better than most of the other options (even the more expensive ones), while still working well with any other modification or parts that you are likely to add to the trigger group.
This release sits close to the trigger housing, reducing the chance of snagging on something and dropping the magazine unintentionally. But because of it's length it still results in an easy and smooth mag drop, with a simple flick of the fingers of your shooting hand. And now you can get it Cerakoted in colors to match your trigger and the rest of your firearm.
I don't know... how much can you say about a magazine release? It's awesome, this one lives on most of our personal rifles, and it... drops magazines. What's not to love?