Having trouble Try these pics.
OK, the first is my Nemisis (left) as set up for 3D. The Alien Z (right) is set up for indoor target.
Second pic is to show the difference in the sights. They are both using an HHA 5019. Nemisis has a production sight. The Z is the same sight with a 4" extension and 4X scope lens.
Third pic is a closeup of the "homemade" extension made by a friend of mine. Now it needs painted black to match.
Fourth pic is a shot of my 2005 ShadowCat magnum with B Nitrous X cams and custom strings. I'm still hunting for a pair of HL Nitrous minimods for it in case anybody has any. Check out the home made STS mounted where the cable rod would have been.