Brass Fast Cap Adapter for CO2 Quick Changes Compatible with Byrna LE, SD, EP, LE, HD, XL

This brass fast cap adapter is a handy upgrade for Byrna launchers. It fits properly on compatible models and makes CO₂ cartridge changes much quicker compared to the standard cap. The brass construction feels solid and durable, and the threading is smooth with no cross-threading issues. Once installed, it seats securely and holds pressure as expected. It’s especially useful if you swap cartridges often or want a more convenient, tool-free experience. While it’s a small accessory, it noticeably improves usability. Overall, a well-made and practical add-on that saves time and adds convenience for Byrna owners.

This cap is well machine from quality brass materials and has a good fit in the Byrna LE. The cap has ample knurling, so you can easily remove it and replace it with your fingers. The brass cap does add a little weight to the end of the Byrna which for me works. This enables me to get more out of my practice sessions in a shorter amount of time. There is a logo that is stamped on the top of this cap which for some might be an issue. I have had no issues with this cap when using it, and have not had any wear or damage. If you want a method to change your CO2 cartridges quicker, this is a good option.