Pull Trigger, loads, then releases chamber?

Building or modifying BB, Airsoft, and Pellet type of guns. Show off your custom designs, find tips and other discussion. Target practice only!
Doc j
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Mon Jun 15, 2020 6:43 pm

Came across pics of this a Classic
I like idea of its simplicity.
Would like to do something similar.
With one hose going in.
Unsure how it works.
Any ideas.
Is it just sorta a spool valve concept.
P. S. Had a pic with the trigger attached but couldn't upload it.
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Fri Jun 19, 2020 6:30 pm

Here is one working:

Looks like it is basically the same concept as a NBB airsoft gun.

A double action trigger seals the chamber and then knocks open a valve poppet.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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