I have had several Witnesses, but not the 10mm. I traded my .40 compact for a competition .22 rifle, since I had a Glock 23 with higher capacity. I still have 2 witnesses and 3 barrels, and will never get rid of either. By the way, you can trade out barrels and mags in a10mm for a .45, .40, etc. I forget which switches for which, but I have a 9mm, .40 and .41AE all for the same gun. Love them! The wonderfinish is VERY hard!