The MTAC-30 delivers rugged, reliable precision and crystal-clear views for target engagement when it counts. 1-4x24 model includes heavy-duty, 10-intensity, digital-rotary dimmer switch with off positions between each intensity setting. HiLume™ index-matched multichemical multicoat delivers 99.8%-plus light transmission per lens surface. Separated power ring and eyepiece accommodate flip-up lens covers. Low-profile adjustable knobs with finger-adjustable MOA markings. Rugged highlights include 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.