Walther's PPQ M2 series represents the pinnacle of Walther centerfire innovation, engineering and technology. The PPQ M2 SD model has a polymer frame with an integral Picatinny MIL-STD-1913 rail, a reversible magazine release button, ambidextrous slide stop, and interchangeable backstraps for the perfect fit. It utilizes a quick defense trigger, matte finish Tenifer-coated slide and barrel for corrosion resistance, low profile 3-dot sights. The PPQ M2 SD also has a polygonal rifled barrel and two drop and one firing pin block safety. This model has a 4.9" barrel chambered in 45ACP, black finish, and comes with a 12-round magazine.