As a warranty replacement, Glock sent me a brand new Gen 3 Glock 19 (test fire date in July 2012). Upon closer inspection I noticed a few things: 1) frame says "Made in USA" 2) slide marked "USA" instead of "Austria" 3) Mags have the exposed metal in the mid section but are not ambi-cut like the Mags that came with the Austrian gun I had bought. Number 6 followers still. 4) Barrel marked "US" or "USA" (can't remember at the moment) 5) The finish is actually darker (black) than the Austrian one they replaced (grey). Is there any collector value in this? Or should I just shoot and carry as normal? I had read these were not being sold in America. Thanks!