Simply slide it onto the aluminum barrel.
I added the thread for the EX BCAR Rev.2 to a friction fit sleeve for 16mm aluminium barrels to easily attach an BCAR to the LYNX.
The sleeve has an outer diameter of 19mm and can be slided through the opening of the muzzle piece.
It's a tight fit, and it should be to stay in place.
Carefully remove elephant feet and/or brim residue.
If it is too tight to slide onto the barrel, sand the inside a little, especially the inner Z-seam.
There is a version for 40cm and for 45cm aluminium barrels.
The files are already pre-oriented.
It only needs 8g (or 16g) of filament.
My print settings for PLA:
0,2mm layer height
5 walls
20% gyroid infill
7 top and bottom shell layers
No supports needed.
A brim is recommended.
Thanks to Epicxxxx for the files I could use for this remix.
The author remixed this model.
I added the thread for the EX BCAR Rev.2 to a 50mm deep friction fit sleeve for 16mm aluminium barrels.