Square Window Barrel

thingiverse

This piece was initially designed as a base for an underbarrel HAMP launcher. However, that project didn't pan out, and I decided to keep the barrel intact. I wanted something more robust and square in design, which is why I opted against using the Recon cosmetic barrel - it consistently impeded performance (I suspect this is due to the darts colliding with the inner tube). - 28 Oct 2019: Mounting lug clearances were expanded by .01in, and a Picatinny rail option was added.