Exceptionally rugged optic - SIG SAUER Romeo8T Red Dot Sight 1x38 mm

This optic is a heavy duty, robust optic with very clear high quality glass. While it's larger and heavier than many alternative red dots, you get a lot in return for the added weight. The CR123 battery gives you excellent battery life. The large window provides an unparalleled field of view. The reticle is bright, and you can easily use this with both eyes open in most any lighting condition. You have multiple options of reticles from which to choose. If you are looking for rugged and hard use, this is a good choice. If you are trying to minimize weight, you probably want to look elsewhere.