The one you really want - Radian Weapons Raptor Ambidextrous Charging Handle

You need to try this charging handle. I have it on my Daniel Defense V7 and love it. Every single person that picks this rifle up comments on this charging handle. Several ended up purchasing one and putting on their rifle. Solid. Much easier to rack when you have a 1 power optic like the Vortex 1-6 Viper that sets right over the charging handle for my tired eyes. It's just easier to rack with the limited amount of space. I didn't care for the one that came on the rifle and was contemplating changing the optic out. I bought this off a recommendation and it worked out great. I put these on all my rifles now. Will be building a SP10 in 6.5 CM. Definitely going on that one as well.