Willieboy,
The 21 is good old 45ACP. I also have the mini glock in .40, while Nikki's is in 9mm.

I saw one of the mini glocks in a factory desert camo finish at Cabela's. It looked awesome. Almost made me pick up another permit for it....

The new two-tone glocks in black slide with OD frame are pretty nifty looking. All of ours are classic evil black.

My .40 is from the original run, when all the boxes were marked "for police purchase and use only". Hee Hee Hee.