Using this Furick CIPPY cup kit is easy. First, take the thermoplastic BBW cup and attach it to your existing BBWSG - 19 Brass. Make sure to use the 2 O - rings provided to ensure a tight fit. The brass BBW gas lens is already installed, so you're good to go on that part. The gas diffusor helps in the proper distribution of gas. When using, avoid dropping the cup as even though it's non - breakable, a strong impact might still cause some issues. To maintain it, clean the cup regularly with a soft cloth. Since it's made in the USA, you can trust its quality for a long - lasting performance.