Nice, however... - Vltor BCM Gunfighter Charging Handle, 7.62mm

For my .308 the handle was slightly too long preventing the latch from locking in. To remedy the problem the handle was secured vertically in a padded vice and 240 grit aluminum oxide strips were used to shoe-shine the rounded nose end until the latch closed plus .008" for some free play. New handles and the receiver channel need to be greased and the handle used to cycle the bcg. Next high point scrape marks on the handle need to be sanded smooth. Clean the handle and the receiver channel thoroughly to remove accumulated coating grit. Apply lube again sparingly.