Thanks guys! I did remove the grips and found; 6 . 28 on the left side, like Muley Gil said there would be. And there is a prefix on the bottom of the barrel, that appears to be a B inside of a tilted square!? Not sure what to think, about what I found on the inside of the grips?!? DWalt, I actually didn't think to include the prefix in my first post, because I thought it was an 8 inside of a tilted square, but when I used a magnifying glass, I see it is a B. I never would have looked closer at it, without your help! Guess, I don't have quite the gun that I thought I did!

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