Leupold Announces Launch of New-for-2021 Mark 3HD Line of Riflescopes Ammoland Inc. Posted on Leupold Mark 3HD 1.5-4×20 U.S.A. –-(AmmoLand.com)- Leupold & Stevens, Inc., provider of the world’s most rugged, lightweight, and clear sport optics, has announced the arrival of its new Mark 3HD line of tactical riflescopes. With MIL-based adjustments, HD lenses, an exposed elevation adjustment dial, and a low-profile power selector ring, this series delivers everything a shooter could ask for. Featuring Leupold’s Elite Optical System, the Mark 3HD delivers excellent dawn-to-dusk light transmission for a bright image when it matters most, elite-level glare reduction in harsh light, and the resolution and clarity that diehard shooters demand. 30mm maintubes across the entire line allow for more elevation adjustment.