Triggered by Airsoft

We last encountered Andrew Stephens, superintendent of a high school in a suburb of Boston assuming that all Muslims affiliated with the school supported the October 7 attacks on civilians in Israel. See The recent flare-up in Israel, explained by Massachusetts public school principal for the email in which “Palestine” is recognized as a nation (would that be a positive for the Islamic Resistance Movement (“Hamas”) and their supporters? If Gaza were a standard country, the IDF could simply flatten it as the US/UK did to Germany and Japan, without trying to sort out each person’s individual level of affiliation with the government in power and the war effort.)

Something more upsetting than the deaths of October 7 has now occurred, however, and I have a new email to share:

Dear [Lincoln-Sudbury High School] Students and Families:

I am writing to let you know that, today in the L-S Library, some students were online and observed by other students to be looking at and discussing airsoft guns. This created understandable feelings of fear and anxiety for some students and staff. I am writing to reassure our community that we investigated and followed all appropriate safety measures in conjunction with the Sudbury Police. The students in question were not in possession of airsoft guns or any other device that either is, or resembles, a firearm or weapon. As a result of our investigation and consultation with the Sudbury Police, we do not have any ongoing safety concerns at this time.

Thank you,
Andrew Stephens, LS Superintendent/Principal

The police were called to the scene of some kids looking at a web page with a picture of an Airsoft product that is part of a “game” (Wikipedia).

Question for readers.. the Wikipedia page says that compressed air isn’t used:

The name “soft air” referred to the compressed Freon-silicone oil mixture (later replaced by a propane-silicone oil mixture known as “Green Gas”) that was used as a propellant gas, which was significantly weaker than the cannistered CO2 used in proper airguns (pellet guns and BB guns).

If a low pressure compressed gas is required, why wasn’t simple air used, perhaps with a regulator? What was the advantage of using these exotic gases?

It looks like some of the latest Airsoft guns actually do use compressed air that is compressed on-demand with battery power. Explained by a retailer:

Contemporary electric airsoft guns use a mechanical system inside, the gearbox contains three gears and a motor that allows the transfer of electrical energy into mechanical energy. It’s a simple process that begins with a trigger pull, then the trigger contacts close thus completing the electric circuit from battery to motor. After the motor draws enough energy it will begin spinning and engage the first (bevel) gear. The bevel gear is blocked by an anti-reversal latch, so it doesn’t reverse. This bevel gear then engages with the second (spur) gear, which subsequently engages the third (sector) gear.

Once the sector gear makes contact with the piston, it pulls it back in order to compress the spring. Meanwhile, a tiny nub on the sector gear drags the tappet plate back which consequently also retracts the air nozzle towards the cylinder. With this motion set, it allows the next BB to feed up into the hop-up chamber. The tappet plate will return to its original position which then chambers the BB. With the piston released by the sector gear, a spring shoots back launching the piston through a cylinder to force pressured air out. The BB is launched out, mechanical energy which suddenly becomes pneumatic energy.