This 1-8x24mm riflescope features our illuminated BTR-1 reticle for fast and accurate target acquisition. To speed up switching between magnification we've given you two Throw Down Power Change Levers (PCL) of different length. The 6 mil per revolution turrets are capped to protect them from bumps and hard use. It utilizes a 30mm main tube, illumination is provided via CR2032 battery, and it's IPX7 waterproof. Illuminated BTR-1 reticle Throw Down Power Change Lever, 2 lengths Capped turrets to protect against hard use. Features:IPX7 Waterproof construction - O-ring sealed optics stay dry inside, when immersed in three feet of water for up to 30 minutes. Mfg: Bushnell