1. Complete Kit: The designation "mounted spare parts" suggests that it is a comprehensive kit that includes various components related to the pressure reducer housing, ensuring a full replacement or upgrade.

2. Compatibility: The spare parts are likely designed for specific models of Feinwerkbau air rifles, ensuring proper fit and function within the designated pressure reducer system.

3. Precision Engineering: Feinwerkbau is known for precision engineering, and the spare parts are expected to be crafted with meticulous attention to detail to meet the brand's high standards.

4. Maintenance or Upgrade: The kit may be intended for routine maintenance or as an upgrade to enhance the performance of the pressure reducer system.

5. User-friendly Installation: The kit may include user-friendly installation instructions to assist rifle owners in replacing or upgrading the pressure reducer housing components.

FWB Pressure reducer housing, mounted For FWB 800X