Tech force optics deliver high quality, outstanding performance and unequaled value. All Tech Force Scopes are manufactured with camera quality polished glass for exceptional clarity. All lenses are coated to make the target appear brighter and to improve contrast. The coating also reduces bright glare and reflections. Tech Force scopes are durable and built to last. Compasseco offers five different classes of scopes to meet any of your target or hunting needs. Take a Tech Force scope with you the next you go target shooting or hunting! Once you try one of our scopes, it will become your favorite shooting companion. The Tech Force .22 Cal and Low Power Airgun Scopes are built for economy but they still retain exceptional clarity and durability. These scopes are an excellent choice for the beginning shooter. Eye Relief 2.5" Length 10.75"