Recently I received a few of these charging handles. I always liked the shape and knurling design of their bolt handle. In the past other users indicated that the bolt handle could be over inserted which could cause damage. This seems to be corrected in the latest version. The knurling on the bolt handle has changed slightly. it now has directional grooves. The bolt handle is fixed in a single position and does not rotate once locked in place.   So if you've tried the bolt handle in th