The Condition One Micro Sight Mount allows the user to pair a Red Dot Sight with the C1 J-Arm giving the end user several different micro and macro adjustment points. For Micro adjustment points, the C1 Trijicon RMR MSM has 2 different locations for a shooter to choose from on the plate itself (front or rear) and for Macro adjustments the C1 Modular Mount has 4 accessory ports left, right, fore and aft. This gives the user of the C1 Trijicon RMR MSM 8 total positions to best suit their specific setup or application. Made From 6061-T6 aluminum Type III Hardcoat Anodized. Includes self adhesive waterproof membrane. Weight .6oz.