The Crimson Trace Hardline Low Power Variable Optics are deliberately built for everyone from tactical professionals to backyard plinkers. The line features multiple optics with several magnification options and options and MOA or MIL options. All reticles are calibrated to be precise yet robust enough for the use of multiple calibers amongst multiple different platforms. All LPVO’s feature a 34mm tube crafted from aerospace grade anodized aluminum that are extremely lightweight and durable. Scopes are shockproof according to MIL-STD-810G test protocol and are waterproof according to IPX7 protocol allowing optics to be submerged in 1 meter of water for 30 minutes. All scopes are fully multi-coated and have exceptional light transmission and glass quality. Nitrogen purging prevents scopes from fogging in all environments. Glass etched reticles and quality glass allows for excellent field of view. Windage (Right Turret) Elevation (Top Turret) and Parallax adjustment (target focus - left side). Scope turrets are low profile to make scopes compact and less prone to damage. Turrets are capped and spring loaded to ensure quick, precise, reliable, and toolless adjustments. Mounting and sighting information can be found on the Crimson Trace Amazon page and on the Crimson Trace website. All Crimson Trace scopes are covered under the LIFETIME protection guaranteed warranty and backed by our award-winning customer service team.