Monstrum Tactical Low Profile Picatinny Riser Mount (0.5" H x 1.5" L), for Red Dots Low profile riser mount for red dots, allows for sight clearance over front sights 0.5 inch in height and 1.5 inches in length, Picatinny rail mount, will accommodate Picatinny or Weaver standard red dots and optics Sturdy and lightweight, 1.2 ounces in weight, crafted from aircraft grade aluminum