Pick up a Mark 5HD™ 3.6-18×44 riflescope and you’ll feel the difference. It’s up to 20 ounces lighter than other scopes in its class giving you an advantage on the battlefield or at the range. With three revolutions of elevation adjustment the Mark 5HD was built to max out the performance of the latest long-range rifles and ammo. – 5:1 Zoom Ratio – Custom Dial Compatible – Zero Lock Dial – Zero Stop – Lightweight Aluminum Housing – Motion Sensor Technology (MST) – M5C3 ZeroLock Adjustments – Side Focus – Twilight Max HD – Illuminated – Nightvision Compatible Illumination – Waterproof Fogproof & Shockproof