Walther's tactical PPQ M2 SD .22 is the best of both worlds, efficiency and self defense. The pistol has a polymer frame with an integral Picatinny MIL-STD-1913 rail, threaded barrel, 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 combat sights. It has two drop safeties as well as a firing pin block. Type Pistol Grips Black Polymer Action sao Safety Ambidextrous Slide Series M2 SD Tactical Weight 20.9 oz Caliber 22 LR Capacity 10+1 Barrel Type Threaded Sight Style Adjustable Weight Range 16.00 oz to 31.99 oz Barrel Length 4" Frame Material Polymer Slide Description Serrated Barrel Length Range 4.00" to 4.99" Sight Configuration Fixed Front/Adj Rear