MGM Switchview 172-176SV2 Vortex PST Metal Mag Ring Scope Magnification Lever MGM Switch view enhances the efficiency as it helps in switching between magnification levels. Magnification lever can be adjusted very easily making it convenient and quite useful. worth your money spent. Ring Scope has quality of both saving time and effort efficiently assisting in your shootout. Changing power on your scope is really a challenge but MGM Switch View has come up with a solution now you can change power on your scope real fast. Easily installed aim assist, Made in USA. Quality Assured.