Build Quality: The Umarex S&W M&P 9 M2.0 Blowback CO2 BB Pistol build quality is fairly decent , fit and finish looks good with not too much slide wiggle and the materials used are both metal and plastic or polymer that look to be good quality.
Realism: The Umarex S&W M&P 9 M2.0 Blowback CO2 BB Pistol in terms of looking like the real steel version of its counterpart is very close for sure, would be hard to tell without further investigation. Umarex has done a great job of making this Blowback Airguns look believable by covering the CO2 screw, recessing the barrel and even working the manual safety into the right side slide catch release. In terms of operation the Umarex S&W M&P 9 M2.0 Blowback CO2 BB Pistol functions as you would expect other than it can not be easily filed striped and the blowback operation does not cycle back as much as a full blowback gun would.