The SI-Sidewinder is a backup iron sight that offers unprecedented flexibility. In one low profile package, the Sidewinder offers the on the go option for Left or Right 45 degree offset or traditional in line capabilities. Whether you are in need of a low profile, low snag inline backup for your red dot, or a short range, offset CQB sight backup for magnified optics, the Sidewinder can fill your needs. The low profile SI-Ambush mounting system can clear even the largest of optics and the offset sight means instant access to your back up iron sights without removing your optic. Tool-less elevation and windage adjustment. Reversible for right or left hand use.