Have a few guns that I've wanted rails on, a couple 1911s and my Beretta 92. Been looking around to see what would work and I came across a video on youtube for the TICK rail. I'd been leaning toward a Novak rail but didn't want to drill into the frame. So when I saw this I was very interested. http://www.trgear.com/osc/eshop/product_info.php/products_id/216 Works pretty easy, you pull your slide stop out, slide the rail on and put the new (extended) stop in. Take the supplied little driver and tighten the set stew down against the trigger guard. It pushes the little plastic rail out away from it so it locks it. So here's what it's looking like the bottom of the dang thing, and the right side, you see where the new slidestop comes just to the edge of the new rail. and the finished product, it holds the light a little lower than I was expecting but overall seems good. It's just plastic, but feels very sturdy. I put 3 mags through it after I put it together and it had a few slide hangups early in the first mag, but worked itself in quickly. So far so good I'd say And not bad for anybody trying to add a light onto a gun without drilling the gun.