the purple trace hardline optics are designed with the tactical and target shooter in mind and have been purposefully constructed from the floor up. The road functions aerospace grade 1” and 30mm tubes that are designed to deal with abuse. The line offers beneficiant eye relief to get back on track fast. They’re completely multi-coated, nitrogen purged, water-resistant, and equipped for whatever factors they come upon. All crimson trace® scopes are included below the lifetime protection assured guarantee and subsidized by using our award-winning customer service team.