by Surfinbird » 21 Feb 2022 16:16
You can buy from Sparrow lockpicks or lockpickshop.com. both have cutaway cylinders you can buy with security pins and include extra pins so you can also get practice repinning or changing the configuration to alter the challenge. I would advise against the clear plastic acrylic cylinders though if you're trying to get the feel for security pin binding. It feels different in the plastic cylinder compared to metal. Just my humble opinion though.