TF11 is a badass little machine pistol to use as a secondary for indoors games. I've gamed it and got some nice kills with it. Down side is the fixed hopup is set for .2g BBs, so you're stuck using them if you want maximum range. It's the only gun Tactical Force make that I'd wholeheartedly recommend. And mostly because it's made in Japan by Umarex rather than China like the rest of their junk.