Check compatability before purchasing - Breek Arms Warhammer Mod2 AR-10 / LR308 Ambidextrous Charging Handle

I bought it for a DPMS AR10/308LR, and it is very tough to pull the charging handle. I had to polish it all the way around for the smoothest, and it just got a little, little bit better, but still hard to pull; literally, I need to pull it with both hands. It also feels a little rough in the fingers. The only pros on this is the price and looks nice, I haven't go to shoot yet and hopefully it gets better by time and use.