Monstrum Tactical High Profile Picatinny Riser Mount (1" H x 1.5" L), for Red Dots High profile riser mount for red dots, allows for sight clearance over front sights 1 inch in height and 1.5 inches in length, Picatinny rail mount, will accommodate Picatinny or Weaver standard red dots and optics See through design for use with iron sights Sturdy and lightweight, 1.6 ounces in weight, crafted from aircraft grade aluminum