Raise you line of sight by 1" without adding a bunch of extra weight to your firearm. This Compact 8-ring Riser Mount attaches to flat-top in a matter of seconds with two large thumb screws. This raises your line of sight by 1". The 8 ring slots allow you to adjust for the most preferred sight placement. It's constructed of aluminum alloy 6061 for strength and durability and it's finished in anodized matte black. It can use either standard Picatinny or Weaver rings.