Style: Red dot sight Magnification : 1x Pattern:2.5 MOA Dot Colour aiming point:Red Adjustment:100 yards (clicks/in) 1.0 Illumination Source LED Suitable for GLOCK 17 19 20mm rail Material:6061 aviation aluminum Precision CNC machining Surface hard anodized Reticle color Red Battery Type: CR2032 With five available brightness settings, the reticlecan be manually adjusted by pressing the plus orminus buttons on either side of the unit. NOTE : For Customs reason, batteries are not included. Sorry for the inconvenience. Package Includes 1 x Scope 1 x 20mm bracket 1 x Glock base (28.5mm) 1 x Universal glock red dot sight gasket RMR/VENOM/ MROS base clip 1 x Mirror cloth