The BarrelBlok system is meticulously engineered to provide a safe and effective dry fire practice for semi-automatic pistols across multiple calibers. Each BarrelBlok device fits seamlessly into your firearm's chamber, ensuring it remains inert while allowing realistic handling and operation. With its innovative design, BarrelBlok not only enhances your training by offering a visual indicator of safety but also protects critical internal components like the firing pin from potential damage during practice.Whether you're honing your skills or conducting drills, BarrelBlok helps you achieve optimal training results without the need for disassembly. This system is essential for anyone committed to safe and realistic firearm training.Available Calibers:BarrelBlok .380: For pistols chambered in .380 AutoBarrelBlok 9: For pistols chambered in 9mm (9x19, 9mm Para)BarrelBlok .45: For pistols chambered in .45 ACPBarrelBlok .40: For pistols chambered in .40 S&WBarrelBlok .357: For pistols chambered in .357 SigIncluded with Each BarrelBlok Kit:1 BarrelBlok training device3 MagBlok magazine inserts1 Instruction booklet for easy setup and usage