I've got a S&W M&P9 Fullsize, S&W M&P9 Compact, and I got a Sig 1911 TacOps coming home in about a week. I decided on a Sreamlight TLR-1 over the Surefire X300 because it's half the price. I was gonna use this on my nightstand gun, S&W M&P9 Fullsize or Sig 1911 TacOps. But then, I started to...