The Anarchy Outdoors compensator for the Smith & Wesson M&P Shield 9mm reduces kickback by up to 50%. The compensator attaches to the muzzle, which allows the gasses to combat the shot recoil without sacrificing shot power. The decreased kickback reduces target re-engagement time. This product is not manufactured, authorized, endorsed, or warranted by Smith & Wesson. Specifications for Anarchy Outdoors Smith & Wesson M&P Shield Compensator: Manufacturer: Anarchy Outdoors Caliber: 9mm Luger Gun Make: Smith & Wesson Gun Model: Smith & Wesson M&P Shield Features of Anarchy Outdoors Smith & Wesson M&P Shield Compensator Reduces kickback by up to 50% by pushing down the muzzle and redistributing gas pressure, does not sacrifice shot power; Helps reduce the time between shots; Easy installation Package Contents: Anarchy Outdoors Smith & Wesson M&P Shield Compensator What firearm models does the manufacturer say Anarchy Outdoors Smith & Wesson M&P Shield Compensator is compatible with? The manufacturer says that Anarchy Outdoors Smith & Wesson M&P Shield Compensator is compatible with Smith & Wesson M&P Shield