Walther Laser Sight For P22 Pistol Md: 2692830, This laser was developed especially for the P22 and is designed to be a perfect fit. The quick release catch allows the laser to be mounted or removed instantly without the need for additional tools. LED on either side of the laser illuminate indicating that the laser is on., Beam Intensity: 630nm Dot Size: .50″ Diameter Power: N/A Range: 50 meters Weight: 2.67 oz Battery: Two coin cells 1.5 V type SR44 Color: Black Gun Model: P22, Manufacturer: WALTHER USA, Model: 2692830