A new accessory kit is now available for the Hitchhiker family of printable single-shot .22 LR firearms. The parts let owners attach muzzle devices by threading them straight onto the barrel in a sturdy, straightforward way. The kit covers both five-inch and ten-inch barrels.

Version 1.1 was issued on August 27, 2026. That release revises the Classic Muzzle by strengthening its stowage lug so the component can better resist damage.