100% T6061 Aluminium CNC Process, Outer Barrel Not Included
For MARUI USP Compact GBB Use Only
Weight : 76 g
Material : Aluminium/Steel
Colour : Silver
Installation Tips - Pictures are listed for reference
- To remove original BBU, unscrew rear iron sight screws and then push BBU out, whilst holding the Slide and applying pressure outwards on the slide.
- Install the small tension spring and Extractor onto Alloy Slide first
- Install BBU/Nozzle Spring with brass bar
- Install Rear Ironsight and Front Sight
- Grease/Oil slide where applicable
- Install upper onto USP Lower