Radian Qwktn GDE RD for GLK43/43X/48

Most adjustable guide rods on the market use a cap screw to hold the spring in place. The problem? Loose screws happen too often, and thread lockers force you to pick a single spring weight. Enter the screwless design of the COMPRESSOR Quick-Tune Guide Rod. The dovetail interface is secured by the spring, providing a simple and reliable lock-up. Flutes along the guide rod let the spring move more smoothly with less friction for better cycling. The heat-treated guide rod has a sleek, durable, and corrosion-resistant Nitride finish.