littlecreek,

You and I are in the same boat. I asked this same question on AR15.com in the S&W subforum there - and no one has responded with any knowlegde about the Raptor. I guy did post that he is currently using a "Gen 2" BCM charging handle on his M&P10 - but he also knows of problems with earlier gens of the BCM unit.

If I can find a Raptor .308 charging handle - and if the outfit will accept returns if it doesn't fit - I will buy one and report here if it works or not. I hope is works - as I love the Raptor on my 5.56 guns.

cheers

tire iron