Designed for Rimfire to keep your muzzle velocity consistent. Placing one of these caps over the end of your barrel helps to trap moisture in the barrel and prevent it 'drying' out between stages, thus reducing cold bore muzzle velocity shifts.
The caps are printed using a flexible material (TPU) and contain magnets to keep it securely attached to your barrel. These work even better when paired with our magnetic rimfire chamber flags.
Range of sizes available, as they are magnetic you can choose a best fit size, but if you would like a custom size for your barrel or tuner, please contact me.
