Quality, not too large - Taran Tactical Innovations Charging Handle, Ultimate

At first, I thought I might be disappointed that it was a bit on the small side (diameter, not length). Other popular handles you see on many M2's are large and round and much more noticeable. But after installing and manipulating this one a few times, I'm actually glad that it is smaller (in diameter). It sticks out far enough to get a solid grip (even with gloves). Nice and subtle, I like it. Installation is (obviously) extremely simple - no problems.