Introducing the RCI SA138 3/8" 8310 Split Arm Kit with Hardware, a reliable solution for your locking needs. Crafted from durable steel, this kit ensures longevity and strength. With dimensions of 3/8” (9.5 mm), it is designed to fit seamlessly into your existing setup. This product is specifically compatible with the 8310 MultiMag, making it an ideal choice for enhancing your security system. Upgrade your locking mechanism today with this high-quality arm kit and experience peace of mind. Don't miss out on this essential addition to your security arsenal – order now!