Prop Bottle Silencer adaptor - PCO1881 to 14mm CCW / 1/2-20 UNF thread

thingiverse

Little part to fit a plastic bottle to an airsoft gun or airgun - files threaded for the standard airsoft M14 x 1.0 LH ("14mm CCW") fitting and airgun 1/2-20 UNF standard are included. This is to make a prop. While a big bottle has a large air volume, and while there is an impact on the noise level, it doesn't really function as a very useful sound moderating device compared to any other design and should not be treated as such. It was originally designed for a friend for some photography, it definitely looks the part. In a lot of media when this trope is followed, the bottle is filled with a rag and coated in duct tape, which might increase the "apocalyptic" feel. If you wanted to play airsoft with a fake bottle silencer, it would certainly be unique. Screw one end onto the bottle and the other to the threaded tube. If the thread is too tight, print it wider - 100.5% scale on the relevant axis. Keep it the same height - that axis should be 100%. Many thanks to terahurts for the excellent Fusion 360 bottle thread profile (PCO1881-V5.xml).