UTG Pro MAX 1-inch two-piece scope rings in a medium profile for Picatinny and Weaver rails. See-through cuts let you use backup iron sights beneath a 1-inch tube optic. Features: 1-inch tube diameter, two-piece design Medium profile Fits 20mm Picatinny and Weaver rails Aircraft aluminum body with steel locking plate Twist-lock / quick-detach mounting with recoil stop and cross-bolt See-through cuts for backup iron sights Black finish Match the ring diameter to a 1-inch scope tube. The see-through design supports lower-third iron sight co-witness on the right setup.