I like the BCM Gunfighter- I have one on my LE6920.
It is definitely a step up from the standard issue, which has a tendency to twist or flex. Also rather than using two fingers in a V shape you can grab the extended handle very easily.
That said, the standard issue never failed me and is good enough for soldiers in combat so it really comes down to whether you want to fork out the dough. You will be able to reliably charge the weapon either way.

