Caflon Ear Piercing Gun Made in the USA. The Caflon Ear Piercing Gun, model KR993-CAF, is a popular choice for ear piercing, known for its ease of use and safety features. It's a full metal design, making it easy to sterilize and durable. The gun is designed for painless and hygienic ear piercing and is compatible with various earring studs. It is often used by professionals and is also suitable for home use.