The Simmons 8-Point 3-9x 50mm Riflescope (Clamshell Package, Matte) features a large 50mm objective, a 1.0 tube and a Truplex reticle. This entry-level optic is fitted high-quality coated lens, 1/4 MOA adjustments and it s water, fog and shockproof. A mounting base and rings are used to attach a riflescope to a firearm.A comfortable sight picture is contingent upon the height of the rings. A comfortable cheek-weld is the result of properly positioning the scope over the receiver. Mounting the scope close to the receiver is preferable, yet scopes with larger objectives need higher rings so the front bell can clear the barrel. It should be noted that in many mounting applications, a professional gunsmith s skills will be needed for proper installation.