signtmark ferfield firefield battery life ultra shot plus sight button on the side to adjust variable brightness settings sight mark new color clarity in daytime; simply hit the left arrow to switch to night mode - with classic emerald or black and white to provide an enhanced nighttime image and accurate target acquisition up to 200 yards truglo when brightness counts new trushot riflescope is made easier by the handy fingertip wind-age and elevation knobs tru•tec micro sub-compact open red dot sight the micro incorporates the favorite features of the tru tec" line in an ultra-lightweight and versatile profile including digital push-button brightness control and push-button brightness controls and is compatible with optic-ready pistols reticle low fleet price magnification sku duplex duplex duplex buckline riflescope magnification sku reticle low fleet price duplex bdc bdc bdc all optics are available at select stores and online