Element Optive have designed the HELIX in a way that puts the important things first: clear glass, smart reticles, innovative features and a turret system superior to other products in the same price class. The HDLR takes things one step further, with ED Glass, Reticle Illumination, a massive Zoom Range and more Elevation Travel. They've kept the ever popular Tool-Free system and Zero-Stop on the Elevation turret for ease of use when dealing for extended ranges, but have capped the windage for a more hunter-friendly, compact feel. Stringent quality control procedures give you peace of mind when taking that 1000 yard shot, and if something goes wrong, theirPlatinum Lifetime Warranty has you covered!