The UTG 0.83-inch Medium-Compact Riser raises your optic 0.83 inches to clear iron sights or dial in a more comfortable cheek weld. The 3-slot top rail and see-through profile keep the setup compact while a spring-tension side plate makes mounting quick. Features: Raises optic height by 0.83 inches 3-slot Picatinny top rail See-through profile Aircraft-grade aluminum, matte black anodized finish Spring-tension side plate for quick install Overall length approximately 1.58 inches Confirm your optic base spans three slots or fewer before ordering.