We at MechArmor Defense Systems have developed an Ambidextrous charging handle that has been tested and adopted by many S.W.A.T. units across the country. The TacOps-1 came about from my own frustration when breaking in the barrel of my AR10. My optics extend rearward and flush with the back of the handle and accessing it was impossible. As Andrew pointed out, the thumb and index finger just don't cut it. At any rate, the TacOps-1 was born and is available in both the AR10 and AR15 platform. As of this writing, Andrew will have his handles this week.