Swift Sur-Lok Magnum 3-9x40mm Riflescope Matte Sur-Lok System Locks the Windage and Elevation - No Shifting Under Recoil.By popular demand, Swift has re-introduced their Sur-Lok reticle system in an improved and simpler design. In the unlocked condition, a Sur-Lok scope adjusts windage and elevation against the usual erector tube spring tension. But once you're sighted in, you turn the Sur-Lok knob to lock the setting. This makes it impossible for the reticle to flex against the springs and change zero when bumped by magnum recoil or rough handling. This Swift Sur-Lok 674M is an "SRP" model. We call them Super Resolving Premiers (aka SRP) because the most significant improvements of late seem to be in the light gathering and clarity of the optics. A proprietary new lens coating is said to be Light Amplifying. The elevation and windage adjustments feature low profile target knobs with dust covers. Swift Premier SRP riflescopes have fully multicoated lenses with full saddle one piece tube construction and feature Speed Focus eye pieces for best reticle focus. This 674M model has a Medium Fine QuadraPlex Reticle. All Swift SRP riflescopes come with a free screw-on sun shade. Order YOUR Swift Sur-Lok Magnum Scope Today! See All of our Swift SRP Riflescopes at our Swift Riflescopes Home Page!
Flip Open cover size: Eye 18 and Objective 28Honey-Comb Sunshade: Size 3