The fixed barrel spacer provides increased versatility when using the Banish 45 suppressor, allowing it to be optimized for fixed barrel firearms. By replacing the spring inside the Nielsen device, this spacer ensures smooth operation and reliable performance. It is specifically designed for use with firearms that feature a fixed barrel, such as pistol caliber carbines and subguns, including popular models like the Sig MPX, CZ Scorpion, and Kriss Vector. The fixed barrel spacer is the perfect solution for enhancing the functionality of your Banish 45 on these types of firearms, offering seamless integration and consistent results. Compatible with the Banish 45 suppressor, enhancing the suppressor's performance and usability across different firearms