Fullfield II scopes incorporate Burris designs that are rock-solid, optically brilliant and a great value. Forgiving eye relief, impeccable light management, low mounting, one-piece eyepiece/power ring, European-style diopter, and multigenerational strength are built into this popular scope. It has HiLume index matched multichemical, multicoat lenses that deliver 99.8%+ light transmission per lens surface. Double internal spring tension, steel-on-steel precision adjustments, hand-fit zoom assemblies, one-piece outer tubes, quad seals, 24-step nitrogen purging and Forever Warranty mean reliable performance and durability. HiLume StormCoat lens coating beads and sheds water. Combo includes a 3-9 x 40 RimFire scope with Plex reticle.