I borrowed a S&W M&P 40 from a buddy because I wanted to try something other than my .22.  I have a terrible time trying to load this thing.  Ammo just doesn't want to go in the magazine.  It hurts my fingers.

I have 50 rounds and I got 13 in but it's got room for 15 and those 13 took 15 to 20 minutes to load.

All I can find are speed loaders for M&P Shield or Glock.  He bought this in 2010 or 2011.