HARDLINE 1-8X28MM SFP RIFLE SCOPE The Crimson Trace Hardline Low Power Variable Optics are deliberately built for everyone from tactical professionals to backyard plinkers. The Crimson Trace Low Power Variable Optic line of scopes is right for you. The line features multiple optics with several magnification and measurement 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 Mfg: Crimson Trace Corporation