One of the smartest and most intelligent adaptations to traditional rails. Knowing that we can attach accessories directly to the rail is great. Receivers, transmitters, articulated arms, brackets, lights, handles, battery packs. the ideas of the occasion go on and on. A BIG addition without the extra weight. The mounting holes are where the weight would normally be! This makes it almost 30% lighter! Take a few, even if you're just using them as standard 15mm rods. You have prepared your system