$fn=60;

include<threads.scad>
include <BOSL2/std.scad>
include <BOSL2/shapes2d.scad>
include <boltsos_0.4.1/BOLTS.scad>

// Sight
color("grey") {
    // Base
    translate([0,0,20]) {
        rotate ([-90,0,0]) {
            difference() {
            translate([0,-5,0]) cuboid([20,50,40], rounding=2);
            xcyl(l=20, d=12.5);
            }
        translate([0,-30 ,0]) rotate([-90,0,0]) tube(od=15, wall=3, h=7, chamfer=0.5);
    }
    // Eye
    translate([0,50,-9]) {
        tube(od=12, wall=3, h=22, chamfer=0.5);
        translate([0,0,16]) tube(h=15, or1=6, or2=20, wall=3, chamfer=0.5);
        }
    }
}