This is a reproduction G43 muzzle nut to adapt your G43 for blank fire. Made in USA. These were designed for the model that had a threaded muzzle nut.
These are threaded to original metric thread specs- 14mm diameter, by 1.5mm thread pitch.
Unlike other blank fire muzzle nuts available, this one comes with four ,(or 5) washers that already have several different size holes in them to adjust the gas restriction on your weapon. Most reproductions don't offer this interchangeable washer system. The kit comes with instructions.
Important note: When blank adapting your weapon, first check it over and ensure all the parts are functioning properly. Before installing any of the adjustment washers, fire a blank without any restriction: The weapon shouldn't cycle. After that, install the largest adjustment washer (the one with the biggest hole). Do not start with the smallest hole as it creates the most back pressure in the gas system.
Every blank is different. We recommend using Atlantic Wall blanks but other reliable blanks exist and will work with this blank adapter. Excessively hot or inconsistent blanks can damage your weapon.